Abstract
Ganoderma, a well-known medicinal mushroom, has garnered attention for its broad therapeutic properties, particularly its potent antimicrobial activities. This review focuses on the mechanisms of action and bioactive compounds responsible for the ability of Ganoderma to inhibit various pathogenic microorganisms. The polysaccharides, triterpenoids, proteins, and phenolic compounds in Ganoderma exhibit strong antimicrobial effects by targeting bacterial cell walls, disrupting membrane integrity, and inhibiting key microbial enzymes. These compounds are effective against a wide range of bacteria, including Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and various fungi. Triterpenoids, specifically, have demonstrated efficacy in modulating immune responses, further enhancing the body’s defense mechanisms against infections. Furthermore, the role of Ganoderma in preventing biofilm formation and combating antibiotic-resistant strains highlights its potential as a natural antimicrobial agent. While in vitro and in vivo studies strongly support the antimicrobial properties of Ganoderma, future resety -50arch should focus on large-scale clinical trials to confirm its efficacy and explore its synergistic effects with conventional antibiotics. Establishing standardized dosages and exploring the molecular pathways of its antimicrobial actions will be key to incorporating Ganoderma into clinical practice for infection control.
1 Introduction
Ganoderma is a genus of medicinal mushrooms used for thousands of years in traditional East Asian medicine. Revered for its numerous therapeutic benefits, Ganoderma has gained significant attention in modern scientific research due to its bioactive compounds exhibiting various pharmacological activities (Karunarathna et al., 2024a). Among these activities, its antimicrobial properties stand out as an area of growing interest, particularly in an era where antimicrobial resistance (AMR) poses a significant global health threat (Pandey et al., 2020). Understanding the mechanisms by which Ganoderma exerts its antimicrobial effects is critical for developing novel therapies that harness its bioactive compounds to combat various infectious diseases (Mousavi et al., 2023; Karunarathna et al., 2024b). The antimicrobial properties of Ganoderma are attributed primarily to its rich content of bioactive compounds such as polysaccharides, triterpenoids, phenolic compounds, proteins, and peptides (; ). These compounds have been shown to work synergistically to inhibit the growth of various pathogenic microorganisms, including bacteria, fungi, and viruses. Historically, Ganoderma has been used in traditional medicine to treat infections, improve immune function, and promote overall health. These traditional uses are being validated by scientific research, which has provided evidence for Ganoderma’s effectiveness in inhibiting microbial growth and enhancing immune responses to infections.
One of the most studied bioactive compounds in Ganoderma is polysaccharides, particularly β-glucans, which are known to modulate immune responses and exhibit strong antimicrobial effects. Polysaccharides have been shown to activate macrophages and other immune cells, enhancing the ability of the body to detect and eliminate microbial pathogens. Triterpenoids, another significant class of compounds in Ganoderma, have demonstrated the ability to disrupt microbial cell walls and inhibit the replication of pathogens, particularly bacteria and fungi (Liu et al., 2022). In addition to these, phenolic compounds and polyketides of farnesyl quonines types and peptides isolated from Ganoderma also play crucial roles in its antimicrobial activity by scavenging free radicals, reducing oxidative stress, and enhancing the body’s natural defense mechanisms (). The antimicrobial properties of Ganoderma have been documented in various in vitro and in vivo studies, which have explored its efficacy against a wide range of pathogens. For instance, Ganoderma has potent inhibitory effects on Gram-positive and Gram-negative bacteria, including Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. Moreover, it has shown antifungal activity against Candida albicans, a common cause of fungal infections in immunocompromised individuals (). Furthermore, emerging studies have investigated its potential antiviral activity, with some evidence suggesting that Ganoderma extracts may inhibit the replication of viruses such as herpes simplex virus (HSV) and influenza virus (Seo and Choi, 2021). These findings suggest that Ganoderma could be a valuable natural alternative or adjunct to conventional antimicrobial therapies, particularly in the context of rising antibiotic resistance. The mechanisms through which Ganoderma exerts its antimicrobial effects are complex and multifaceted. Disruption of microbial cell walls, inhibition of nucleic acid synthesis, and modulation of immune responses are among the primary mechanisms identified in current research. Ganoderma bioactive compounds interact with microbial cells, weakening their structural integrity and preventing proliferation. Moreover, Ganoderma’s ability to modulate the host’s immune system enhances its antimicrobial efficacy, as it not only directly inhibits pathogens but also strengthens the body’s natural defenses against infections (Gao et al., 2005). Despite the promising antimicrobial potential of Ganoderma, several challenges remain. One major limitation is the variability in the composition of bioactive compounds across different Ganoderma species and even within the same species depending on environmental factors and cultivation methods. This variability makes it difficult to standardize extracts for clinical use. In addition, while in vitro and animal studies have provided valuable insights, more human clinical trials are needed to confirm the safety and efficacy of Ganoderma as an antimicrobial agent. Future research should focus on identifying the compounds responsible for antimicrobial effects of Ganoderma and developing standardized formulations for therapeutic use. Ganoderma represents a promising natural source of antimicrobial agents with potential applications in treating various infections. Its ability to modulate the immune system and directly inhibit microbial growth makes it an attractive candidate for developing novel antimicrobial therapies. However, further research is necessary to fully understand its mechanisms of action and overcome the challenges associated with its variability and standardization. As antibiotic resistance continues to rise globally, exploring natural alternatives such as Ganoderma is becoming increasingly important. This review aims to provide a comprehensive overview of the antimicrobial properties of Ganoderma, focusing on recent advances in understanding its bioactive compounds, mechanisms of action, and potential therapeutic applications, particularly in the context of rising AMR. The novelty of this work lies in synthesizing recent findings and highlighting emerging insights into the role of Ganoderma as a promising natural antimicrobial agent.
2 Ganoderma bioactive compounds
Ganoderma species produce a variety of bioactive compounds with significant health benefits, including polysaccharides, triterpenoids, proteins, peptides, and phenolic compounds, each contributing uniquely to their therapeutic potential. This section provides a brief overview of these compounds, highlighting their structures, functions, and mechanisms of action. Detailed phytochemical and bioactivity profiles of Ganoderma have been extensively reviewed (; ).
Among the most studied bioactive compounds are the polysaccharides, particularly β-glucans from G. lucidum. These complex carbohydrates, characterized by β-D-glucose linkages, are categorized by molecular weight and solubility, factors that influence their biological activities (Karunarathna et al., 2024a). β-glucans are known to modulate the immune system by activating macrophages and natural killer cells, enhancing the immune response of the host (Chen et al., 2023). They also impact cellular signaling pathways, regulating cytokine production and inhibiting tumor growth (Zhang et al., 2023). The structural features of Ganoderma polysaccharides, such as branching patterns and molecular configurations, play a critical role in determining their therapeutic efficacy (Wu et al., 2025).
Triterpenoids, another major class of Ganoderma bioactive compounds, include ganoderic and lucidenic acids. These compounds, with their multi-ring structures and diverse functional groups, contribute to a wide range of biological activities (Raza et al., 2024; Pan et al., 2025). Triterpenoids have shown potent immunomodulatory effects by modulating cytokine production and enhancing the activity of immune cells like T cells and macrophages (Jin et al., 2025; Lucius, 2025). They also demonstrate broad-spectrum antimicrobial activity by disrupting microbial cell membranes and interfering with enzymatic processes critical for pathogen survival (; Wang et al., 2017; Ewunkem et al., 2024; Liang et al., 2024). Phenolic compounds in Ganoderma, such as flavonoids, phenolic acids, and polyphenols, are well-known for their antioxidant properties. They reduce oxidative stress by neutralizing free radicals and reactive oxygen species (ROS). Their antioxidant effects are largely due to their electron-donating ability, stabilizing free radicals and preventing cellular damage and inflammation (Kebaili et al., 2021; Plosca et al., 2025). In addition to their antioxidative functions, phenolic compounds also exert antimicrobial activity by disrupting microbial cell structures and inhibiting key enzymatic functions necessary for pathogen survival (Rašeta et al., 2023). The multifunctional roles of these compounds underscore their significance in maintaining health and preventing disease.
3 Mechanisms of antimicrobial action
Ganoderma species possess many bioactive compounds that exhibit significant antimicrobial activities. The mechanisms by which these compounds act against pathogens are multifaceted, involving direct effects on microbial structures and functions and modulation of the host immune system (Figure 1).
Figure 1
3.1 Disruption of microbial cell walls
One of the primary antimicrobial mechanisms of Ganoderma bioactive compounds is the disruption of microbial cell walls. Triterpenoids, such as ganoderic acids found in Ganoderma lucidum, interact with the lipid components of bacterial and fungal cell membranes, leading to increased permeability and cell lysis. This disruption compromises the integrity of the microbial cell wall, causing leakage of cellular contents and, ultimately, cell death (Ewunkem et al., 2024; Ojha, 2025).
3.2 Inhibition of nucleic acid synthesis
Ganoderma bioactive compounds also inhibit microbial proliferation by interfering with nucleic acid synthesis. Polysaccharides extracted from Ganoderma species have been reported to inhibit DNA and RNA synthesis in pathogenic microbes. They achieve this by binding to nucleic acids or key enzymes involved in replication and transcription processes, thereby hindering microbial growth and replication. This inhibition of genetic material synthesis is crucial in preventing the spread and survival of the pathogen (Sułkowska-Ziaja et al., 2022; Liang et al., 2024).
3.3 Immune modulation
Ganoderma compounds enhance the immune response of the body, providing an indirect mechanism to combat infections. Polysaccharides, especially beta-glucans, are known to modulate the immune system by activating macrophages, dendritic cells, and natural killer cells (Zhang et al., 2023; Zhong et al., 2024). This activation increases cytokine and antibody production, bolstering the body’s ability to fight microbial invaders. The immunomodulatory effects of Ganoderma not only enhance the innate immune response but also promote adaptive immunity. By stimulating immune cell proliferation and differentiation, these compounds help establish long-term immunity against specific pathogens (Seweryn et al., 2021; Zhong et al., 2023). This dual action makes Ganoderma an effective agent in preventing and managing infections.
3.4 Oxidative stress regulation
Oxidative stress plays a significant role in the pathogenesis of many microbial infections. Phenolic compounds of Ganoderma exhibit strong antioxidant properties, which help balance ROS within microbial cells (Zahmoul et al., 2024; Plosca et al., 2025). By inducing oxidative stress beyond the tolerance levels of microbes, these compounds can lead to cellular damage and death of the pathogens. Conversely, in host cells, Ganoderma antioxidants protect against oxidative damage caused by infections. They scavenge excess ROS, reducing inflammation and preventing tissue damage (
4 Synergistic effects of compounds
The antimicrobial efficacy of Ganoderma species, particularly G. lucidum, is not solely attributed to individual bioactive compounds. Instead, the interactions between various compounds—such as polysaccharides, triterpenoids, proteins, peptides, and phenolic compounds—create synergistic effects that significantly enhance their therapeutic potential. Synergy refers to the increased effectiveness when these compounds work together, often producing results greater than the sum of their actions.
4.1 Interaction between different bioactive compounds
Polysaccharides and triterpenoids are two of the most studied bioactive compounds in Ganoderma. Polysaccharides are known for their immunomodulatory properties, while triterpenoids have potent antimicrobial and anti-inflammatory activities. Combined, these two compounds demonstrate enhanced immunomodulatory effects, stimulating the body’s immune system to fight off infections more effectively (Gao et al., 2005). For example, while triterpenoids may directly disrupt microbial cell membranes, polysaccharides boost the production of immune cells like macrophages and natural killer (NK) cells, leading to a synergistic antimicrobial action (Seweryn et al., 2021; Zhong et al., 2023).
4.1.1 Proteins and peptides with triterpenoids
Proteins and peptides in Ganoderma also exhibit antimicrobial properties, particularly against bacteria and fungi. When these are used with triterpenoids, the compounds together demonstrate enhanced efficacy. The peptides may disrupt microbial membranes, while triterpenoids inhibit nucleic acid synthesis, thereby preventing microbial replication. This dual mechanism increases the effectiveness of the antimicrobial response, especially in pathogens resistant to single-compound treatments (Cör Andrejč et al., 2022;
4.1.2 Phenolic compounds and polysaccharides
Phenolic compounds in Ganoderma contribute significantly to its antioxidant activity, reducing oxidative stress within cells. When combined with polysaccharides, these phenolic compounds enhance the immune response and improve the organism’s overall resistance to microbial infections. The phenolic compounds neutralize ROS, while polysaccharides improve immune cell signaling. This combination leads to a more efficient and sustained immune response to pathogens, particularly in cases of chronic infections (Seweryn et al., 2021;
4.2 Enhanced antimicrobial activity
Research shows that combining polysaccharides and triterpenoids from Ganoderma results in enhanced antibacterial activity. For example, studies on E. coli and S. aureus have shown that combining these two compounds leads to stronger inhibition of bacterial growth compared to their individual effects. The synergy is observed in the disruption of bacterial cell walls by triterpenoids and the enhancement of immune responses by polysaccharides, which work together to eliminate bacterial infections more efficiently (
4.2.1 Synergistic effects against fungal infections
In the case of fungal infections, particularly C. albicans, combining polysaccharides with phenolic compounds has been shown to enhance antifungal activity. This combination disrupts fungal cell walls while simultaneously inducing oxidative stress within the fungal cells. The phenolic compounds reduce ROS accumulation, which damages fungal cells, and the polysaccharides enhance the immune response, creating a powerful antifungal effect. The result is a more effective inhibition of C. albicans growth and biofilm formation, critical for fungal survival and virulence (Roychoudhury et al., 2024).
4.2.2 Viral infections
Emerging research also suggests that the synergistic effects of polysaccharides and triterpenoids in Ganoderma may extend to viral infections. For instance, in studies on the HSV, a combination of these compounds has demonstrated the ability to inhibit viral replication more effectively than when either compound is used alone. Polysaccharides stimulate immune responses, such as activating macrophages and NK cells, while triterpenoids interfere with viral entry into host cells, resulting in enhanced antiviral activity (Eo et al., 2000;
5 Research on specific microorganisms
Ganoderma species, particularly G. lucidum, have gained recognition for their potent antimicrobial properties against various pathogens. The bioactive compounds in Ganoderma exhibit broad-spectrum activity against bacteria, fungi, and viruses, making it a promising natural remedy in combating infections. Below is a detailed review of research focusing on the effects of Ganoderma on specific microorganisms. GTs are the most common antimicrobial and antiparasitic compounds reported from Ganoderma sp. Farnesyl quinone, a polyketide type, is the second most common antimicrobial and antiparasitic compound from Ganoderma sp. Quinones are known to be oxidized derivatives of aromatic compounds and are often readily made from reactive aromatic compounds with electron-donating substituents such as catechols and phenols. Besides GTs, polypeptides, small peptides such as ganodermin, polysaccharides such as sacchachitin, and chitosan also possess antimicrobial and antiparasitic properties (Mothana et al., 2000; Wang and Ng, 2006; Sanodiya et al., 2009; Chuang et al., 2013). Extracts from fruiting bodies, both wild and cultivated, and mycelia from fermentation broth are used for the isolation of antimicrobial and antiparasitic bioactive compounds. Literature divulges that, most commonly, ethanol (EtoAc) is used to prepare crude extract; sometimes, some researchers prefer other solvents such as chloroform (CHCl3), EtOH, and acetone (Isaka et al., 2016). In addition, our review reveals that hexane and ether are poorly used for the preparation of extract from Ganoderma sp. Moreover, some techniques such as microwave, ultrasound, and enzyme treatments can facilitate the breakdown of the cell wall (Ferreira et al., 2015). Solvents like MeOH, EtOH, CH2Cl2, CHCl3, and aqueous—both cold and hot—are used for further purification and isolation. Techniques such as thin-layer chromatography (TLC), high-performance liquid chromatography (HPLC), and column chromatography (CC) are used to facilitate the purification and isolation process (Huie and Di, 2004).
5.1 Bacterial infections
Several studies have demonstrated the efficacy of Ganoderma bioactive compounds against pathogenic bacteria, including both Gram-positive and Gram-negative strains. Key compounds, such as triterpenoids, polysaccharides, and peptides, have shown significant antibacterial effects (Figure 2). Ganoderma has been reported as an important source of antimicrobial bioactive compounds. Terpenes, terpenoids, and polyketides of farnesyl quonine types are the major secondary metabolites produced by Ganoderma sp. In Ganoderma species, more than 316 terpenes have been reported, with the majority of compounds from G. lucidum (Xia et al., 2014).
Figure 2

Structures of bioactive compounds from Ganoderma species with antimicrobial and antiparasitic effects (
5.1.1 Ganoderma extracts and fermentation broths
The methanol extract of G. lucidum showed antibacterial activity against E. coli, Salmonella typhimurium, and Bacillus subtilis [minimum inhibitory concentration (MIC): 1 mg/well], with bioactive polyphenols, flavonoids, quinones, and terpenes identified (Sheena et al., 2003). Among 23 Yemeni Basidiomycetes, Agaricus sp., Coriolopsis caperata, Ganoderma colossus, Ganoderma resinaceum, Phellorinia herculea, and Tulostoma obesum exhibited potent antibacterial effects, while G. resinaceum, Inonotus ochroporus, Phellinus rimosus, and P. herculea displayed strong antioxidant activity (
G. applanatum exhibited antimicrobial activity against E. coli, S. aureus, C. albicans, Mycobacterium smegmatis, and Sporothrix schenckii, highlighting its therapeutic potential (
G. lucidum ethyl acetate extracts showed the strongest antibacterial activity (containing carbohydrates, saponins, and terpenoids), being most effective against Corynebacterium pyogenes, B. subtilis, and Klebsiella pneumoniae though less potent than AmpicloxR (Shamaki et al., 2012). Water extracts inhibited P. aeruginosa, Proteus vulgaris, and Enterococcus faecalis but not L. monocytogenes, while hexane/dichloromethane/ethyl acetate showed limited antimicrobial isolation potential (Kamra and Bhatt, 2012). In Central India, G. lucidum aqueous extracts enhanced synthetic antibiotics against S. aureus, K. pneumoniae, Bacillus cereus, and P. aeruginosa (Karwa and Rai, 2012). Acetone extracts showed the strongest activity against P. aeruginosa (33 mm zone) and the weakest against S. aureus/K. pneumoniae (7 mm), with MICs of 4–35 mg/mL (Mehta and Jandaik, 2012). G. lucidum spore and G. applanatum polysaccharides inhibited S. aureus, B. cereus, and Salmonella enteritidis, suggesting potential as food supplements (Klaus et al., 2012). Comparative studies showed that G. lucidum had the largest inhibition zones against E. coli/Klebsiella sp., though less than standard antibiotics (Krishnaveni and Manikandan, 2014). Solvent choice significantly impacted activity: benzene extracts best inhibited E. coli/Neisseria meningitidis (Shikongo, 2012), while methanol extracts surpassed ampicillin/streptomycin against S. aureus/B. cereus (MIC: 0.0125–0.75 mg/mL) (Heleno et al., 2013). Diethyl ether/chloroform extracts showed strong antagonistic effects (Nithya et al., 2013). Traditional Namibian uses were validated as Ganoderma spp. showed potent Gram-positive/negative activity (Shikongo et al., 2013). The anti-S. aureus activity of G. applanatum was linked to soluble saponins/phenols (Nagaraj et al., 2013). G. lucidum, Pleurotus spp., and Agaricus bisporus demonstrated broad therapeutic potential (Mondal, 2013).
G. lucidum extracts showed significant antimicrobial activity against P. aeruginosa, E. coli, S. aureus, Proteus mirabilis, and K. pneumoniae. Aqueous extracts produced 11.0- to 14.0-mm inhibition zones, with bioactive tannins, phenolics, flavonoids, and saponins identified (Fakoya et al., 2013). HPTLC analysis revealed six flavonoids and four phenolics, with methanol extracts most effective against K. pneumoniae (24 ± 0.666 mm), while Gram-negative bacteria showed greater susceptibility than Gram-positive S. aureus (Sakthivigneswari and Dharmaraj, 2013). G. praelongum (0.3%) combined with Glycyrrhiza glabra (2.5%) in topical gels significantly inhibited MRSA and enhanced wound healing (
Recent studies have demonstrated significant antimicrobial potential in various Ganoderma species. Ganoderma boninense methanol extracts exhibited strong activity against foodborne pathogens E. coli and S. aureus, with GC-MS analysis identifying dodecanoic acid and octadecanoic acid as key bioactive compounds (Ismail et al., 2014). Comparative research on G. lucidum strains revealed distinct bioactive profiles, with Serbian specimens showing higher sugar content and anticancer properties, while Chinese varieties contained more organic acids and demonstrated superior antioxidant capacity—both strains displayed antimicrobial effects that occasionally surpassed standard drugs (Stojković et al., 2014). The extraction method significantly influenced activity, as G. lucidum methanolic extracts (500 µg/disc) produced the largest inhibition zones (13.04 mm) against S. aureus and P. aeruginosa (Djide et al., 2014). Chloroform extracts showed notable efficacy against S. typhi (18 mm) and C. albicans (17 mm), with analytical techniques confirming triterpenoids and polysaccharides as active components (Gowrie et al., 2014). Optimized fermentation protocols yielded extracts with antioxidant activity exceeding ascorbic acid and antimicrobial effects against Shigella dysenteriae, E. faecalis, and K. pneumoniae (Paliya et al., 2014). Additional studies confirmed variable but promising activity of G. lucidum against P. aeruginosa, E. coli, E. faecalis, S. aureus, and C. albicans, with ethanol and chloroform extracts proving most effective (
Comparative studies of mushroom species revealed that G. tsugae had the highest dry weight (16.1 g/100 g), while A. bisporus contained superior protein (32.0 mg/g) and glucose (13.2 mg/g) content. A. bisporus acetone extracts showed antimicrobial activity against E. coli (13 mm) and P. aeruginosa (14 mm), whereas G. tsugae displayed stronger antibacterial effects in DMSO extracts (Dharmaraj et al., 2014). Nigerian studies of G. lucidum ethanolic extracts identified steroids, triterpenoids, and glycosides with activity against E. coli (12 mm), K. pneumoniae (12 mm), P. mirabilis (13 mm), and Streptococcus spp. (14 mm) at 1,000 mg/mL (Etim et al., 2014). Ganoderma sp. DKR1 contained saponins, tannins, and terpenoids, with ethyl acetate extracts active against Micrococcus sp., S. aureus, and Salmonella sp., while chloroform extracts inhibited E. faecalis and Candida sp (Rajesh and Dhanasekaran, 2014). G. lucidum acetone extracts (50 µg/mL) showed potent antibacterial activity (31.60 ± 0.10 mm) against six bacterial species and antifungal effects at 1,000 mg/mL (Singh et al., 2014). With rising drug resistance, G. lucidum methanolic extracts containing carbohydrates, triterpenoids, and phenolics demonstrated strong antibacterial effects (Shah et al., 2014). G. lucidum spore powder inhibited Prevotella intermedia (MIC 3.62 mcg/mL) in 65% of periodontal samples (Nayak et al., 2015). Ganoderma australe exhibited antimicrobial and antioxidant activity from alkaloids, while G. applanatum and Flammulina velutipes showed medium-dependent effects enhanced by wine yeast (Liew et al., 2015; Fidler et al., 2015). Ganoderma mycelium extracts outperformed fruiting bodies with lower MIC values against pathogens (Sharma et al., 2015). G. lucidum-enriched soap demonstrated antibacterial activity against S. aureus and antioxidant capacity (IC50 1.53 mg/mL) (Hayati et al., 2020). G. resinaceum methanol extracts showed significant antioxidant and antimicrobial potential (Zengin et al., 2015), corroborated by other studies (Hoque et al., 2015; Kirar et al., 2015). G. applanatum methanolic extracts inhibited S. typhi (3.21 mm ZOI) and P. mirabilis (3.02 mm ZOI), containing phenolics (20.81 mg/100 g) and flavonoids (23.89 mg/100 g), with nutritional analysis revealing 222.08 Kcal/100 g and 42.72% carbohydrates (Dandapat et al., 2016).
Recent studies have demonstrated significant antimicrobial and antioxidant properties in various Ganoderma species. G. lucidum showed strongest inhibition against Candida glabrata (25 ± 1 mm) compared to C. albicans and B. subtilis (10 ± 1 mm), with its methanolic extract exhibiting exceptional DPPH radical scavenging activity (IC50 = 3.82 ± 0.04 μg/mL) attributed to phenolic compounds (
GC-MS analysis of G. lucidum mycelia and fruiting bodies revealed that the mycelial aqueous extract possessed the highest anti-Candida activity (against C. albicans and C. glabrata biofilms) and ascorbic acid content, suggesting biofilm prevention potential. Chemometric analysis showed variability in volatile organic compounds between extracts (
Australian G. lucidum extracts demonstrated significant wound-healing properties, with ethanol/methanol-extracted triterpenes and water-extracted polysaccharides (50 mg/mL) showing antimicrobial activity against S. aureus (including MRSA), B. cereus, S. pyogenes, and E. coli. Alkali-extracted compounds were effective against P. aeruginosa (Montalbano, 2018). In food preservation, sausages with 0.5% G. lucidum powder maintained lower lipid oxidation and microbial levels while matching sensory acceptability of conventional preservatives (Ghobadi et al., 2018). Ganoderma lipsiense extract specifically inhibited P. aeruginosa (via phenolic compounds like caffeic acid) but not E. coli or S. aureus (Costa et al., 2019). Turkish G. lucidum exhibited high antioxidant potential (TAS/TOS/OSI assays) and antimicrobial activity against nine pathogens (
Comparative analysis of G. lucidum mycelium and spores against P. intermedia from periodontitis patients revealed mean MIC values of 5.64 mcg/mL (mycelium) and 3.62 mcg/mL (spores), demonstrating comparable antimicrobial efficacy for adjunct periodontal therapy (Nayak et al., 2021). Mexican G. curtisii strains exhibited notable biological activities, including tumor cell line inhibition (GI50 ≤50 µg/mL), anti-S. aureus effects, and antioxidant properties, with strain GH-16–023 showing particularly low toxicity (Serrano-Márquez et al., 2021). Kenyan G. lucidum extracts contained terpenoids, phenolics, and glycosides, displaying significant activity against MRSA and Streptococcus pyogenes, with the isolated compound Ergosta-5,7,22-triene-3β,14α-diol showing potent antibacterial effects (
Medicinal polypores including G. adspersum, G. applanatum, and G. australe yielded bioactive ergostane compounds (ergosta-7,22-dien-3-one and ergosta-7,22-diene-3β-ol) through methanol/ethyl acetate extractions, showing significant inhibition against S. pyogenes but not Gram-negative bacteria, suggesting potential for novel myco-medicines (Mayaka, 2020). In biofilm-related studies, G. lucidum demonstrated notable anti-biofilm activity against multidrug-resistant (MDR) Enterococcus strains, offering alternatives for challenging infections (Karaca et al., 2020). Phytochemical analysis revealed that wild Ganoderma species contained saponins and flavonoids, with G. lucidum showing the highest cyanide content. Ethanolic extracts inhibited Salmonella spp., E. coli, S. aureus, and Streptococcus spp., with G. applanatum particularly effective against E. coli (19.50 mg/mL) and all species showing similar MBC (~250 mg/mL) (Wood et al., 2021). Optimized cultivation of Philippine G. lucidum on sawdust/PDA yielded ethanol extracts (100–200 mg/mL) that outperformed standard antibiotics in antibacterial tests, with fruiting bodies showing superior antioxidant activity to mycelia (Subedi et al., 2021). Nine Ganoderma species extracts, including G. tuberculosum and G. tornatum, inhibited Clavibacter michiganensis (31.5–1,000 μg/mL), suggesting applications for tomato canker management (Espinosa-García et al., 2021).
Comparative studies of medicinal mushrooms revealed that Taiwanofungus camphoratus methanolic extracts showed strong antimicrobial activity, while G. lucidum extracts displayed no significant effects, with concerns about Penicillium expansum developing tolerance (Kim et al., 2022). G. boninense demonstrated exceptional anti-MRSA activity (41.08 mm zone, MIC 0.078 mg/mL) through membrane disruption, with LC-MS identifying eight bioactive compounds (
5.1.2 Triterpenoids
Infectious diseases caused by bacteria, fungi, viruses, and parasites remain a leading cause of global morbidity and mortality, particularly in low- and middle-income countries. The rise of AMR, emerging viral pathogens, and neglected tropical diseases underscores the urgent need for new therapeutic agents. Ganoderma species, especially through their triterpenoid-rich extracts, represent a promising yet underutilized resource in addressing these critical health challenges. Triterpenoids, particularly lanostane-type compounds, are among the most bioactive secondary metabolites in Ganoderma spp., exhibiting broad-spectrum antimicrobial and antiviral activity (Table 1). Their multifaceted mechanisms include membrane disruption, enzyme inhibition, and immunomodulation.
Table 1
| Species | Key compounds/extracts | Key findings | Activity indicator | Disease relevance/Target pathogens | References |
|---|---|---|---|---|---|
| Ganoderma lucidum | Ganoderic acids GA-T and GA-Me | Antibacterial and antifungal activity | MIC: 150 µg/mL (bacteria), 100 µg/mL (fungi) | Potential use in treating dermatomycoses, respiratory infections, and Gram-positive sepsis | Shveta et al., 2013 |
| Triterpenoid extract from GLSP | Inhibits S. aureus and E. coli | 61.09% DPPH inhibition | Relevance to skin and urinary tract infections (UTIs) | Shen et al., 2020 | |
| Ethanolic extract (lanostanoid ester) | Active against S. aureus and B. subtilis | MIC 68.5 µM (S. aureus), 123.8 µM (B. subtilis) | Relevance to hospital-acquired infections | Liu et al., 2014 | |
| G. applanatum | Lanostanoids, sterols | Broad antibacterial spectrum | MIC: 0.003–2.0 mg/mL; MBC: 0.06–4.0 mg/mL | Targets respiratory tract bacteria; potential for topical wound infections | Smania et al., 1999 |
| Lanostane triterpenoids | Notable antimicrobial effects | <60 μg/mL | Relevance to cutaneous fungal infections | Shi et al., 2022 | |
| G. casuarinicola | Norlanostanes, ganocasuarinone A | Active against S. aureus and M. tuberculosis | 5 mg/mL (S. aureus), 25–50 µg/mL (M. tuberculosis) | Relevance to tuberculosis and Gram-positive infections | Isaka et al., 2020 |
Antimicrobial properties of triterpenoids in Ganoderma species.
Early studies on G. applanatum identified three sterols and a novel lanostanoid with potent antibacterial activity, showing Gram-positive specificity (MIC: 0.003–2.0 mg/mL; MBC: 0.06–4.0 mg/mL) (Smania et al., 1999). Nigerian G. colossum yielded new colossolactones including 23-hydroxycolossolactone E with antimicrobial potential (Ofodile et al., 2005). Modified applanoxidic acids from Ganoderma spp. maintained activity against E. coli, S. aureus, C. albicans, and T. mentagrophytes (MIC: 1.0 to >2.0 mg/mL) (Smania et al., 2006). Western Ghats Ganoderma sesquiterpenoids surpassed standard antibiotics against bacteria and C. albicans, while triterpenes showed weaker effects (
Table 2
| Species | Extract type | Key findings | Potential applications/Disease relevance | References |
|---|---|---|---|---|
| Ganoderma applanatum | Methanol/Methanolic/Ethanolic | Strong activity against Gram-positive bacteria and some fungi; phenolic-rich | Potential treatment for skin infections, respiratory infections, and Gram-positive sepsis in humans and animals | Pushpa et al., 2013; Moradali et al., 2008; Dandapat et al., 2016; Rijia et al., 2024; Gaylan et al., 2018 |
| Extracts | Highest antibacterial and antifungal activity | Potential for broad-spectrum antimicrobial therapies | Lone et al., 2024 | |
| G. boninense | Methanol/Ethyl acetate/Chloroform | Broad-spectrum activity, including MRSA; membrane disruption | Wound infections, multidrug-resistant bacterial infections | Ismail et al., 2014; |
| G. carnosum | Dichloromethane extracts | Antibacterial and antifungal; antioxidant properties | Topical antimicrobials, antifungal creams, plant protection | Srivastava and Sharma, 2011; Sułkowska-Ziaja et al., 2022 |
| G. colossus | Dichloromethane, Methanolic, Water | Effective against E. coli and S. aureus | Gastrointestinal and skin infections | |
| G. curtisii | Extracts | Antiproliferative, antioxidant, and antibacterial effects | Immunocompromised patient care, supportive cancer therapy | Serrano-Márquez et al., 2021 |
| G. lucidum | Multiple solvents | Broad antimicrobial activity; quorum sensing inhibition | Anti-biofilm agent in chronic respiratory or wound infections | Fakoya et al., 2013; Gowrie et al., 2014; Shang et al., 2013; Zhu et al., 2011; others |
| G. tsugae | Chitosan extracts | Strong antibacterial, surpassing doxycycline | Acne treatment, resistant skin infections | |
| G. resinaceum | Dichloromethane, Methanolic, Water | Active against several bacterial pathogens | Alternative to conventional antibiotics | |
| G. tuberculosum, G. tornatum, G. weberianum | Chloroform-methanol extracts | Antibacterial against Clavibacter michiganensis | Crop disease biocontrol (e.g., tomato canker) | Espinosa-García et al., 2021 |
| Ganoderma spp. | Various solvents | Antibacterial and antifungal against human/plant pathogens | Agricultural biopesticide or general therapeutic candidate | Yamac and Bilgili, 2006 |
Overview of antibacterial properties in Ganoderma extracts.
5.1.3 Polysaccharides
Polysaccharides from Ganoderma species, particularly G. lucidum, offer compelling bioactivity that aligns with global efforts to combat infectious diseases. As AMR and gastrointestinal infections continue to rise globally, especially in immunocompromised populations and developing regions, the need for non-antibiotic, immune-enhancing alternatives becomes critical. Ganoderma-derived polysaccharides, rich in β-glucans and heteropolysaccharides, are emerging as promising immunomodulatory and antimicrobial agents that could complement or replace conventional antimicrobials (Table 3).
Table 3
| Ganoderma species | Polysaccharide composition | Pathogens targeted | Disease relevance/Target infection | References |
|---|---|---|---|---|
| G. lucidum | D-glucose-based polysaccharides | Plant and foodborne microbes | Foodborne infections, gastrointestinal illness | |
| Polysaccharides | Gram-positive bacteria | Skin infections, respiratory pathogens | Skalicka-Wozniak et al., 2012 | |
| Polysaccharides | Bacterial pathogens | General bacterial infections in humans | ||
| Exopolysaccharides (EPS) | Bacillus cereus | Food poisoning, diarrheal syndromes | Mahendran et al., 2013 | |
| Polysaccharides | Opportunistic bacteria | Hospital-acquired infections (e.g., wound and lung) | Kaur et al., 2015 | |
| (1,3)-β-D-glucan, GS | Foodborne and clinical strains | Enteric infections, sepsis-related strains | Wan-Mohtar et al., 2016 | |
| Chitosan | Gram-positive cocci | Skin and bloodstream infections (e.g., S. aureus) | Savin et al., 2020 | |
| Low-MW polysaccharides (3.5–4.5 kDa) | Agricultural pathogens | Zoonotic bacterial risks through crops | Robles-Hernández et al., 2021 | |
| Polysaccharides | E. coli strain | Gastrointestinal infections and UTIs | Zhai et al., 2021 | |
| G. multicornum, G. multiplicatum, G. perzonatum, and G. stipitatum | Polysaccharides | Enteric bacteria | Diarrheal diseases in livestock and humans | Sharifi et al., 2012 |
| Various Ganoderma spp. | Polysaccharides | Mixed bacterial species | Broad-spectrum infections (foodborne, respiratory) |
Polysaccharides in Ganoderma species and their antimicrobial properties.
Hot water extracts of G. lucidum fruiting bodies, primarily composed of D-glucose, have demonstrated activity against plant pathogens (Erwinia carotovora and Penicillium digitatum) and foodborne microbes (B. cereus, E. coli, and Aspergillus niger) (
G. lucidum strain BCCM 31549 produces both (1,3)-β-D-glucan (G) and its sulfated derivative (GS), with GS exhibiting not only superior antimicrobial activity but also selective cytotoxicity against U937 cancer cells (Wan-Mohtar et al., 2016), pointing to potential dual anti-infective and anticancer utility. Enzymatically extracted chitosan from G. lucidum shows superior antibacterial effects against Gram-positive bacteria and improved antioxidant activity compared to chemically extracted counterparts (Savin et al., 2020). Small-molecular-weight polysaccharides (3,500–4,500 Da) isolated from culture fluids have recently demonstrated strong antibacterial effects against plant pathogens (Robles-Hernández et al., 2021), offering a sustainable source for agricultural biocontrol. In a more clinically relevant context, G. lucidum polysaccharides at concentrations of 5–100 μg/mL not only inhibited E. coli proliferation but also modulated immune response pathways in intestinal porcine epithelial cells (IPEC-1), suggesting potential for treating or preventing bacterial gut infections (Zhai et al., 2021).
Collectively, these findings suggest that Ganoderma polysaccharides can address important global health challenges such as antibiotic-resistant bacterial infections, especially gastrointestinal and foodborne diseases. Their natural origin, immunostimulatory properties, and low toxicity support their further development as functional antimicrobial agents or as adjuncts to conventional therapies.
5.1.4 Other compounds
In addition to triterpenoids and polysaccharides, Ganoderma species produce a chemically diverse repertoire of secondary metabolites—including essential oils, steroids, phenolics, alkaloids, and proteins—that contribute to their antimicrobial properties (Table 4). These compounds are increasingly viewed as promising leads in the search for novel anti-infective agents, particularly against MDR pathogens. Given the growing global burden of AMR, notably S. aureus, M. tuberculosis, and nosocomial Gram-negative infections, such natural compounds represent a valuable reservoir for alternative therapies and adjunct treatments. Essential oils derived from G. japonicum mycelia, rich in nerolidol and linalool, exhibited potent activity against MRSA, with a minimum bactericidal concentration (MBC) of 1.03 mg/mL (Liu et al., 2009). G. pfeifferi produced ganomycins A and B, which demonstrated pronounced anti-Gram-positive activity (MIC 2.5–25 µg/mL) (Mothana et al., 2000), suggesting potential as topical agents or adjuvants for skin and wound infections. Novel metabolites from G. australe, including australic acid, showed broad-spectrum antimicrobial effects (Smania et al., 2007), while solvent extracts of G. lucidum yielded terpenoids, alkaloids, and steroids with wide-ranging antimicrobial activity (Subbraj et al., 2008). Proteinaceous extracts from G. resinaceum also demonstrated notable activity against hospital-associated pathogens, including E. coli, S. aureus, and K. pneumoniae (Hearst et al., 2010), while G. lucidum extracts produced inhibition zones up to 16 mm against MDR clinical isolates (Sekaran et al., 2011). Steroidal compounds from several Ganoderma species were shown to inhibit M. tuberculosis (MIC 0.781–50 µg/mL) and Gram-positive cocci (Vazirian et al., 2014), underscoring their relevance for neglected and resurgent infectious diseases such as tuberculosis. Innovative processing and analytical techniques have recently advanced the identification of bioactives from Ganoderma. Gamma irradiation enhanced the antimicrobial potency of G. resinaceum (
Table 4
| Ganoderma sp. | Main bioactive components | Pathogens targeted | Disease relevance/Target infection | References |
|---|---|---|---|---|
| Ganoderma atrum | Sterols | Oxidative protection in Caco-2 cells | Intestinal epithelial protection, gut inflammation | Guo et al., 2022 |
| G. australe | Australic acid and methyl australate | Gram-positive and Gram-negative bacteria, fungi | Broad-spectrum antimicrobial for skin and internal infections | Smania et al., 2007 |
| G. boninense | Ergosterol and ganoboninketals | S. aureus strains | Skin infections, pneumonia, endocarditis | |
| G. japonicum | Nerolidol, linalool, decadienal, and benzyl alcohol | 18 microorganisms, especially MRSA | Multidrug-resistant infections (e.g., MRSA in hospitals) | Liu et al., 2009 |
| G. lucidum | Steroids, terpenoids, and alkaloids | Gram-positive bacteria | Respiratory and skin infections | Subbraj et al., 2008 |
| Phenolic compounds | Pathogenic bacteria | General bacterial infections | Mishra et al., 2018b | |
| Tannins, phenolics, flavonoids, and saponins | P. aeruginosa, E. coli, S. aureus, and K. pneumoniae | Wound infections, UTIs, and nosocomial pathogens | Sekaran et al., 2011 | |
| Uncooked biomass | Antimicrobial and anticancer (MCF-7 cells) | Breast cancer and general microbial infection | ||
| G. resinaceum | Peptides | E. coli, MRSA, and Salmonella | Gastrointestinal and systemic infections | Hearst et al., 2010 |
| Lipids | Fusarium oxysporum and Candida albicans | Mycotic infections in humans and animals | ||
| Ganoderma spp. | Ganomycins A and B | S. aureus and Micrococcus flavus | Gram-positive infections in skin and soft tissue | Mothana et al., 2000 |
| Steroidal compounds | Mycobacterium tuberculosis, S. aureus, and B. subtilis | Tuberculosis and staph-related infections | Vazirian et al., 2014 | |
| Multiple compounds | P. aeruginosa, S. typhimurium, and K. pneumoniae | GI, respiratory, and opportunistic infections |
Antimicrobial properties of various other compounds isolated from Ganoderma species.
5.1.5 Nanoparticles
The global rise of AMR and chronic biofilm-associated infections underscores the urgent need for novel, multi-targeted therapeutics that are both effective and sustainable. Nanotechnology has emerged as a powerful tool in this arena, and Ganoderma-derived nanoparticles—particularly silver nanoparticles (Ag-NPs)—represent a promising frontier in fungal biomedicine. Infections caused by MDR pathogens such as S. aureus, E. coli, and P. aeruginosa remain major contributors to mortality in hospitals worldwide, with the WHO designating these as “priority pathogens.” Numerous studies have demonstrated that Ag-NPs synthesized from G. lucidum, G. resinaceum, and G. sessile exhibit broad-spectrum antibacterial activity, often surpassing the efficacy of conventional antibiotics or potentiating their effects through synergistic mechanisms (Kannan et al., 2014;
Table 5
| Ganoderma species | Nanoparticle type | Antimicrobial activity | Additional applications | References |
|---|---|---|---|---|
| G. lucidum | Silver (Ag-NPs) | Active vs. S. aureus, E. coli, and P. aeruginosa; enhances antibiotics | Therapeutic, anticancer (IC50 9.2 µg/mL), wound dressings, and public health | Kannan et al., 2014; |
| Polysaccharide NPs | Improved antimicrobial and antioxidant activity | Drug delivery | Qin et al., 2018 | |
| Modified sodium montmorillonite | Corrosion resistance and hydrophobicity | Nanocomposites | Sheydaei et al., 2023 | |
| G. applanatum | Silver (Ag-NPs) | Active vs. E. coli and S. aureus | Biomedical applications | Mohanta et al., 2016; Jogaiah et al., 2019 |
| G. sessiliforme | Silver (Ag-NPs) | Effective vs. foodborne pathogens | Antioxidant and cytotoxic effects | Mohanta et al., 2018 |
| Copper oxide (CuONPs) | Active vs. S. aureus, E. coli, and P. aeruginosa | Treatment of superficial infections | Flores-Rábago et al., 2023 | |
| G. sessile | Metallic NPs | Active vs. Campylobacter jejuni | Foodborne illness control | Rivera-Mendoza et al., 2024 |
| G. resinaceum | Silver (Ag-NPs) | Active vs. multidrug-resistant pathogens | — | |
| G. boninense | Phenolic compounds | Strong fungitoxicity | — | Chong et al., 2011 |
| Ganoderma spp. | Titanium dioxide (TiO2) NPs | Effective vs. biofilm-forming pathogens | Clinical antibacterial agents | Marzhoseyni et al., 2023 |
| Silver nanocomplex | Broad-spectrum bactericidal | Eco-friendly antimicrobial agent | Shokouhi et al., 2023 |
Overview of antimicrobial activity and applications of nanoparticles derived from Ganoderma species.
In resource-limited settings where access to antibiotics is restricted, these green-synthesized nanoparticles offer a cost-effective and scalable antimicrobial alternative. Their ability to disrupt bacterial membranes, generate ROS, and inhibit efflux pumps suggests utility in treating persistent infections such as those found in tuberculosis, diabetic wounds, and catheter-associated UTIs (
Importantly, Ganoderma-derived nanoparticles also show activity against biofilm-forming pathogens, a major clinical challenge in implant-related infections and chronic wounds. Biofilms protect microbes from host immunity and antibiotics, contributing to prolonged hospital stays and increased mortality. Titanium dioxide nanoparticles combined with Ganoderma extracts have shown antibiofilm efficacy, which could be leveraged in medical device coatings and sterile wound dressings (Marzhoseyni et al., 2023; Paul et al., 2015). The anticancer and antioxidant properties of these nanoparticles add another layer of relevance. Ag-NPs synthesized from G. lucidum and G. sessiliforme have demonstrated cytotoxicity against breast and lung cancer cell lines, potentially addressing cancer-related infections and immune suppression (Mohanta et al., 2018;
In food safety and agriculture, Ganoderma-based nanoparticles have been tested against Campylobacter jejuni, a major cause of gastroenteritis and post-infectious sequelae in developing nations (Rivera-Mendoza et al., 2024). This points to a broader public health application, particularly in addressing foodborne diseases and improving sanitation in regions with limited access to refrigeration or clean water. Although current studies are predominantly in vitro, the eco-friendly synthesis, scalability, and multipotent biological activities of Ganoderma-derived nanoparticles position them as strong candidates for next-generation antimicrobials. Future work must address in vivo efficacy, targeted delivery mechanisms, pharmacokinetics, and regulatory considerations to facilitate clinical translation. Hence, Ganoderma-based nanomaterials not only show promise against MDR pathogens and biofilms but also align with global health priorities such as reducing AMR, treating co-infections in cancer or HIV patients, and improving access to antimicrobial materials in underserved regions. These properties highlight their unmet therapeutic potential in both developed and developing healthcare systems.
5.2 Fungal infections
Fungal infections pose a growing threat to global health, particularly among immunocompromised individuals, transplant recipients, and patients undergoing chemotherapy. According to the Global Action Fund for Fungal Infections, over 1.5 million deaths annually are attributed to invasive fungal diseases, and current treatments are limited by toxicity, poor bioavailability, and rising resistance—especially in Candida and Aspergillus species. The pipeline for new antifungal drugs remains dangerously sparse, underlining the urgent need for novel, safer, and more effective agents. Against this backdrop, Ganoderma species, particularly G. lucidum, offer promising antifungal potential with mechanisms distinct from conventional agents (Table 6). G. lucidum has demonstrated broad-spectrum activity against pathogenic fungi, including C. albicans, Aspergillus flavus, and Fusarium oxysporum, with some studies reporting MIC values below 1 µg/mL (
Table 6
| Species | Antifungal compound | Target pathogen | Disease relevance/Target infection | References |
|---|---|---|---|---|
| G. lucidum | Culture filtrate | Candida albicans | Candidiasis (oral, vaginal, and systemic) | |
| Ganodermin | Plant and postharvest fungi | Agricultural applications (not animal/human-specific) | Wang and Ng, 2006 | |
| Toothpaste formulation | Oral Candida | Oral candidiasis and dental hygiene | Dzubak et al., 2006; Nayak et al., 2010b | |
| Acetone extract | Filamentous fungi | Respiratory or skin mycoses | Singh et al., 2014 | |
| Methanolic extracts | Soil and plant-associated fungi | Opportunistic infections in immunocompromised hosts | ||
| Ethanol and aqueous extracts | Opportunistic and phytopathogenic fungi | Human fungal infections (skin, respiratory); some plant relevance | Parkash and Sharma, 2016; Radhika and Rajan, 2021 | |
| Glucan sulfate (GS) | Aspergillus spp. | Aspergillosis (pulmonary or systemic) | Wan-Mohtar et al., 2017 | |
| PMMA modification | Candida albicans | Denture-related candidiasis | Enaba and El Gendi, 2022 | |
| Triterpenoids | Dermatophytes and molds | Skin infections like ringworm and athlete’s foot | Wasser, 2011 | |
| Secondary metabolites | Docked with S. aureus protein targets | Suggests dual antibacterial/antifungal action, relevant for mixed infections | Nguyen et al., 2024 | |
| Ethanolic extracts | Aspergillus flavus | Food spoilage fungi and risk of aflatoxicosis in animals | Vahdani et al., 2022 | |
| G. boninense | Methanolic extracts | Candida albicans | Vulvovaginal and systemic candidiasis | Daruliza et al., 2012 |
| G. annulare | Applanoxidic acids A, C, and F | Dermatophytes | Human skin infections (tinea and athlete’s foot) | Smania et al., 2003 |
| G. mbrekobenum | Mycelial plugs | Feed-contaminating fungi | Prevention of mycotoxicosis in livestock | El-Fallal et al., 2021 |
| Ganoderma sp. | Crude exopolysaccharides | Mixed fungal species | General antifungal for clinical and food safety uses | Demir and Yamaç, 2008 |
| Various extracts | Multiple human and plant pathogens | Broad antifungal; relevant for dermatological and respiratory infections | Migahed et al., 2018; Naveenkumar et al., 2018 | |
| Not specified | Aspergillus niger | Opportunistic pathogen in immunocompromised individuals |
Antifungal compounds and activities of various Ganoderma species against pathogenic fungi.
Among the most notable bioactives is ganodermin, a protein isolated from G. lucidum that inhibits multiple phytopathogens (Wang and Ng, 2006), with potential for further development into topical antifungal formulations. In clinical contexts, G. lucidum has been incorporated into products like antifungal toothpaste and biomaterials such as polymethylmethacrylate (PMMA), where it enhanced mechanical performance while inhibiting C. albicans biofilm formation, a common cause of denture stomatitis (Nayak et al., 2010b; Enaba and El Gendi, 2022).
The unique mode of action of Ganoderma-derived triterpenoids—targeting ergosterol to disrupt fungal membranes—may offer an alternative to existing ergosterol-targeting drugs like amphotericin B but with lower toxicity (Wasser, 2011). In addition, these compounds have demonstrated the ability to interfere with biofilm formation and fungal cell wall synthesis, both of which are key contributors to antifungal resistance and treatment failure (
Importantly, Ganoderma extracts have shown efficacy against dermatophytes such as Microsporum canis and Trichophyton mentagrophytes, which are prevalent in tropical climates and often undertreated due to limited healthcare access (Smania et al., 2003). In veterinary and agricultural sectors, Ganoderma is also emerging as a natural antifungal for contaminated feed and crops, suggesting a One Health approach to fungal control (El-Fallal et al., 2021). From a pharmaceutical development perspective, molecular docking studies have revealed strong binding affinities of Ganoderma metabolites to key fungal protein targets, offering a rational basis for structure-based drug design (Nguyen et al., 2024). This computational insight strengthens the argument for clinical translation and underscores the need for further in vivo validation and toxicity profiling. Hence, the antifungal properties of Ganoderma are not just promising in vitro but potentially transformative in clinical settings where fungal infections are increasing and treatment options remain inadequate. By targeting resistant strains, disrupting biofilms, and offering low-toxicity alternatives, Ganoderma-derived compounds could represent the next generation of antifungal therapeutics—especially in settings where conventional options fall short.
5.3 Viral infections
Viral infections remain a major global health challenge, with diseases such as HIV/AIDS, hepatitis B (HBV), herpes simplex (HSV), and influenza collectively causing significant morbidity and mortality. According to UNAIDS, approximately 39 million people were living with HIV globally in 2023, while WHO reports over 250 million people chronically infected with HBV. These figures underscore the urgent need for novel antiviral agents, especially in light of emerging drug resistance and the limited efficacy or accessibility of current therapeutics in many regions. Ganoderma species, particularly G. lucidum, have garnered interest for their potential to address these unmet needs through their diverse arsenal of bioactive compounds (Table 7). Isolated triterpenoids, such as ganoderic acid-β, lucidumol B, and ganodermanontriol, have demonstrated significant anti-HIV-1 protease activity, with IC50 values ranging from 20 to 90 μM (Min et al., 1998; El-Mekkawy et al., 1998). Importantly, molecular docking studies suggest that ganoderic acid-B exhibits a binding affinity surpassing that of the standard drug nelfinavir, supporting its potential as a lead compound for drug development (Kang et al., 2015). In addition, enzymatic crude extracts rich in laccase from G. lucidum have shown remarkable in vitro inhibition of HIV-1 replication (Zhang et al., 2011; Flórez-Sampedro et al., 2016), providing an alternative strategy targeting reverse transcription pathways.
Table 7
| Ganoderma species | Active compound(s) | Target virus | Mechanism/Effect | Disease relevance | References |
|---|---|---|---|---|---|
| G. lucidum | Ganoderic acid-β, lucidumol B, ganodermanondiol, ganodermanontriol, and ganolucidic acid A | HIV-1 | Inhibits HIV-1 protease | Key for antiretroviral therapy; useful against AIDS | Min et al., 1998 |
| Ganoderic acid-α, ganoderiol F, and ganodermanontriol | HIV-1 | Moderate inhibition of viral replication | May reduce HIV viral load in early stages | El-Mekkawy et al., 1998 | |
| Triterpenoids and polysaccharides | HSV | Blocks viral entry | Potential for cold sore and genital herpes treatment | ||
| Polysaccharides | Influenza virus | Enhances host immune response | Immunostimulant for seasonal influenza | Li et al., 2015 | |
| Laccases | HIV-1 | Inhibits reverse transcriptase | Possible treatment option for resistant HIV strains | Zhang et al., 2011; Flórez-Sampedro et al., 2016 | |
| Polysaccharides | HBV | Inhibits viral replication | May support chronic hepatitis B management | Gao et al., 2003 | |
| Ganoderone C, lucialdehyde B, ergosta-7,22-dien-3α-ol | Influenza virus | Suppresses viral growth | Reduces severity and duration of flu symptoms | Niedermeyer et al., 2005 | |
| Lanosta-trienone (GLTA) and ganoderic acid Y | Enterovirus 71 | RNA replication inhibitor | Effective for hand-foot-and-mouth disease in children | Zhang et al., 2014 | |
| Ganoderic acids A–C1, H, and GS-2 | HIV | Broad protease inhibition | Potential backbone compounds for HIV therapy | Kang et al., 2015; | |
| Proteoglycan | HSV-1 and HSV-2 | Pre- and co-treatment inhibition | Suitable for both prophylaxis and treatment of herpes | Liu et al., 2014 | |
| Ganoderic acid H | HBV | Suppresses surface antigen expression | Relevant to controlling chronic hepatitis progression | Li and Wang, 2006; Kumar et al., 2020 | |
| Hesperetin, ganosin B | Dengue virus | Inhibits viral protease | Promising approach to limit dengue replication | Lim et al., 2020 | |
| G. adspersum | Crude extract | HSV-1 | Broad-spectrum antiviral activity | Topical applications for recurrent herpes infections | Zahmoul et al., 2024 |
| G. sinense | Ganoderiol F, ganoderic acid GS-2, and lucidenic acids | HIV-1 | High-affinity viral inhibition | May complement standard HIV therapeutics | El Dine et al., 2008; Sato et al., 2009 |
| G. colossum | Farnesyl hydroquinone, ganomycin I and B | HIV-1 | Competitive inhibition of protease | Novel anti-HIV leads for drug development | El Dine et al., 2008 |
| G. lingzhi | Ganoderic TR and T-Q | H1N1 and H5N1 | Neuraminidase inhibition | Potential therapy for influenza pandemics | Zhu et al., 2015 |
| G. pfeifferi | Ganodermadiol, lucidadiol, and applanoxidic acid G | Influenza A | Moderate suppression of viral activity | May assist in reducing viral load during flu outbreaks | Mothana et al., 2003 |
Antiviral activity of compounds derived from Ganoderma species against various viral infections.
The antiviral effects of Ganoderma extend beyond HIV. Polysaccharides and triterpenes from G. lucidum have shown inhibitory activity against HSV and influenza virus. These effects are attributed to both direct interference with viral entry and replication, as well as enhancement of host immunity through cytokine stimulation (
5.4 Parasitic infections
Parasitic diseases continue to exact a significant toll on global health, particularly in tropical and subtropical regions. Malaria alone caused over 600,000 deaths in 2022, predominantly among children under five in sub-Saharan Africa (World Health Organization, 2024). Other parasitic infections, such as toxoplasmosis, giardiasis, leishmaniasis, and blastocystosis, also contribute to considerable morbidity, with limited treatment options, increasing drug resistance, and toxicity issues posing substantial therapeutic challenges. Recent research has highlighted the potential antiparasitic properties of Ganoderma species, revealing promising efficacy against several protozoal and parasitic infections (Table 8). Notably, nortriterpenes ganoboninketals A–C, derived from G. boninense fruiting bodies, demonstrated potent antiplasmodial activity against Plasmodium falciparum with IC50 values of 4.0, 7.9, and 1.7 μM, respectively (
Table 8
| Ganoderma species | Active compounds/extracts | Target parasite | Disease relevance/Efficacy | References |
|---|---|---|---|---|
| G. boninense | Ganoboninketals A–C | Plasmodium falciparum | Exhibits strong antiplasmodial activity; promising for malaria drug development | |
| G. lucidum | Ganoderic acids (DM, TR1, and S), ganodermanondiol, and ganofuran B | Targets plasmepsin I enzyme in Plasmodium | Inhibits a key enzyme in malaria parasite; potential antimalarial candidates | |
| Hydroalcoholic extract | Toxoplasma gondii (RH strain) | More effective than aqueous and alcoholic extracts; potential toxoplasmosis treatment | ||
| Ganoderma spp. | Lectins | Heterodera glycines and Ditylenchus dipsaci (plant-parasitic nematodes) | Limited antiparasitic effect; not viable for agricultural use | Zhao et al., 2009 |
| Crude extract | Blastocystis hominis | Inhibits growth and induces morphological damage; potential for protozoal infection management | Kaewjai et al., 2023; Uwidia et al., 2024 | |
| Ganoderma sp. KM01 | Schisanlactone B, ganodermalactone F, and colossolactone E | Plasmodium falciparum | Moderate inhibition; candidates for further antimalarial screening | Lakornwong et al., 2014 |
Antiparasitic properties of Ganoderma species.
In studies on nematode inhibition, Zhao et al. (2009) reported that lectins from Ganoderma exhibited activity against plant nematodes Heterodera glycines and Ditylenchus dipsaci, although their potency was deemed insufficient for practical use. Nonetheless, these findings provide a foundation for future optimization or bioengineering approaches to enhance antihelminthic efficacy. Computational studies further support the antiparasitic potential of Ganoderma compounds. G. lucidum triterpenoids were shown to interact with plasmepsin I, a key enzyme in P. falciparum. Ganodermanondiol demonstrated the highest affinity (binding energy = −7.14 kcal/mol, Ki = 0.005 mM), outperforming the standard inhibitor KNI-10006 (Kang et al., 2015). This suggests a plausible mechanism of action and reinforces the value of Ganoderma constituents in rational drug design against malaria. Ganoderma extracts also displayed antiprotozoal effects against Blastocystis hominis, a parasite increasingly associated with gastrointestinal disorders. Strong inhibitory activity was observed at an MIC of 62.5 μg/mL. At higher concentrations, extracts of Ganoderma and Boesenbergia rotunda reduced B. hominis growth by up to 90% within 12 h and induced notable morphological damage, pointing to their potential in managing treatment-refractory blastocystosis (Kaewjai et al., 2023; Uwidia et al., 2024). In addition, G. lucidum extracts demonstrated anti-Toxoplasma effects, particularly against Toxoplasma gondii RH strain tachyzoites. In vitro studies showed that the hydroalcoholic extract of G. lucidum exhibited the highest toxoplasmacidal activity and selectivity (EC50 = 3.274), outperforming both aqueous (EC50: 76.32) and alcoholic extracts (EC50: 40.18) (
6 Clinical studies on antimicrobial properties of Ganoderma
G. lucidum has been extensively studied for its antimicrobial properties, particularly in laboratory and animal models. In vitro studies have demonstrated that its bioactive compounds—mainly polysaccharides and triterpenoids—possess antiviral, antibacterial, and antifungal activities. Despite these promising findings, human clinical evidence remains limited, with most clinical research to date focusing on immune modulation, cancer therapy, and liver protection rather than direct antimicrobial effects. Some preliminary clinical studies suggest potential antiviral benefits. A pilot clinical trial conducted by Hijikata et al. (2005) evaluated an herbal formula containing G. lucidum in patients with herpes zoster (shingles). Participants who received 750 mg daily experienced rapid symptom relief, with most resolving within 10 days, and no cases of postherpetic neuralgia were reported after 1 year. In a subsequent study by the same group (Hijikata et al., 2007), individuals with recurrent herpes simplex infections who were treated with a hot water extract of G. lucidum at 4 g daily reported faster symptom resolution—genital herpes symptoms improved in 4.9 ± 1.3 days compared to 10.9 ± 6.3 days without treatment. However, both studies involved combination herbal formulas, making it difficult to isolate the specific effects of G. lucidum. To date, there are no human clinical trials specifically evaluating the antibacterial efficacy of G. lucidum, and evidence in this area is limited to in vitro findings. Similarly, while antifungal activity has been reported in laboratory settings—particularly against Candida species and dermatophytes—no human studies have validated these effects clinically. Research on its antiparasitic activity remains scarce, with neither significant preclinical nor clinical data currently available.
7 Ganoderma against plant pathogens
Research on Ganoderma has revealed its potential as a natural biocontrol agent against various plant pathogens. Numerous studies have documented its antimicrobial effects, highlighting its capacity to combat fungal and bacterial infections in plants. G. lucidum mycelia showed moderate antimicrobial activity against soil-borne pathogens, including fungi (F. oxysporum, Rhizoctonia solani, and Sclerotium rolfsii) and bacteria (R. solanacearum and S. aureus). In vitro, mycelial extracts increased inhibition zones, while in vivo tests on tomato seedlings delayed disease symptoms, suggesting G. lucidum as a potential biocontrol agent, particularly against R. solani and S. rolfsii (Mendoza and Nepomuceno, 2006). G. lucidum extracts exhibit antifungal properties effective against plant pathogens F. oxysporum and Alternaria alternata in marigolds. This study compared organic and aqueous extracts of G. lucidum, applying various concentrations (5%, 10%, 15%, and 20%) using Agar absorption, Agar well diffusion, and Vapor assay methods. Methanolic extract showed the highest inhibition (64%) using the Agar absorption method, while aqueous extract showed the lowest inhibition (38%) with Agar well diffusion. These findings highlight the potential of G. lucidum methanolic extract as a biological control agent for marigold plant diseases (Shahid et al., 2016). The antimicrobial activity of extracts from wood-rotting Basidiomycetes mushrooms from Eucalyptus plantations in Uruguay was investigated. Eight extracts, including those from G. resinaceum and L. sulphureus, were active against pathogens such as Xanthomonas vesicatoria and Aspergillus oryzae (
The antibacterial effects of selenium-containing biocomposites from submerged cultures of Ganoderma species were studied against plant pathogenic bacteria. Biocomposites from G. cattienensis and G. lucidum were most effective against C. michiganensis, while those from G. valesiacum and G. lucidum showed strong activity against Xanthomonas campestris. G. colossus exhibited notable activity against Pseudomonas fluorescens. The study highlights the potential of using coumarin-based compounds for producing antimicrobial substances from fungi (Perfileva et al., 2017). Eight mushroom species were screened, including G. lucidum, for their impact on Colletotrichum capsici, the chili fruit rot pathogen. The results revealed that G. lucidum, Auricularia polytricha, and Lentinus edodes demonstrated significant antifungal activity, with G. lucidum achieving the highest mycelial growth inhibition (54.81%). Chloroform extracts from G. lucidum inhibited spore germination (88%) and mycelial growth (60.55%) at 24 h. These findings suggest G. lucidum as a promising source for developing fungicides against C. capsici, warranting further investigation of its active compounds (Priy et al., 2019).
The antimicrobial potential of an aqueous ammonia extract from G. lucidum carpophores, sourced from Quercus ilex trees, was investigated, revealing key chemical constituents such as acetamide and oleic acid. The extract exhibited strong anti-oomycete and antifungal activities, with MIC values of 187.5 μg·mL−1 against Phytophthora cinnamomi and varying MICs against other fungi. When conjugated with chitosan oligomers, the extract’s antimicrobial efficacy significantly increased, showcasing MIC values as low as 78.12 μg·mL−1, demonstrating its potential for protecting holm oak in sustainable agricultural practices (Sánchez-Hernández et al., 2023). The antifungal properties of G. lucidum against the mango anthracnose pathogen C. gloeosporioides were investigated in this study. Ethyl acetate extracts from the fruiting body inhibited mycelial growth by 70.10% at a 1% concentration. Thin-layer chromatography identified two active bands, with the first achieving 53.77% inhibition. Gas chromatography–mass spectrometry detected benzothiazole, which completely inhibited mycelial growth at 50 ppm and caused structural abnormalities in the pathogen. The findings suggest that G. lucidum biomolecules could be effective natural agents against plant pathogens (Muniyappan et al., 2023). The crude extract of G. lucidum was formulated into an emulsion [water in oil (W/O)] to induce systemic resistance in chickpeas against Fusarium wilt caused by F. oxysporum f. sp. ciceri (FOC). Different dilutions of the formulation were applied to chickpeas, which were then challenged with FOC. Enzyme assays showed increased activity of peroxidase (PO), polyphenol oxidase (PPO), and phenylalanine ammonia-lyase (PAL) in treated plants, indicating activation of the plant’s natural defense pathways. GC-MS analysis confirmed bioactive compounds responsible for enhancing enzyme levels. This study suggests the potential for developing bio-formulations to control plant diseases (Singh and Vyas, 2023). Table 9 summarizes the antimicrobial activities of Ganoderma species against plant pathogens.
Table 9
| Ganoderma species | Target pathogen(s) | Type of activity | Key findings | Disease relevance | References |
|---|---|---|---|---|---|
| G. applanatum | Sclerospora graminicola (pearl millet downy mildew) | Antifungal (in vitro) | Isolate G_app7 suppressed spore formation and improved plant resistance | Potential bioagent for downy mildew control in cereals | Jogaiah et al., 2016 |
| G. cattienensis and G. lucidum | Clavibacter michiganensis, X. campestris, and P. fluorescens | Antibacterial (selenium biocomposites) | Selenium nanoparticles from Ganoderma selectively inhibited bacterial growth | Useful for agricultural pathogen control and seed coating | Perfileva et al., 2017 |
| G. lucidum | Phytophthora cinnamomi and other phytopathogens | Antifungal and anti-oomycete | Efficacy enhanced by chitosan combination | Effective against root rot and damping-off diseases | Sánchez-Hernández et al., 2023 |
| Fusarium oxysporum f. sp. ciceri (chickpea wilt) | Induced systemic resistance | Stimulated plant defense enzymes (PO, PPO, and PAL) | Sustainable control of Fusarium wilt in legumes | Singh and Vyas, 2023 | |
| Colletotrichum gloeosporioides (mango anthracnose) | Antifungal (in vitro) | 70% inhibition of mycelial growth; benzothiazole identified | Potential for pre-harvest mango protection | Muniyappan et al., 2023 | |
| F. oxysporum, R. solani, S. rolfsii, and R. solanacearum | Antifungal, antibacterial (in vitro and in vivo) | Mycelial extract delayed disease onset and increased inhibition zones | Broad-spectrum plant disease control | Mendoza and Nepomuceno, 2006 | |
| F. oxysporum and Alternaria alternata (marigold pathogens) | Antifungal (in vitro) | Methanolic extract had 64% growth inhibition | Alternative to chemical fungicides for ornamentals | Shahid et al., 2016 | |
| Colletotrichum capsici (chili fruit rot) | Antifungal (in vitro) | Inhibited spore germination (88%) and mycelial growth (54.8%) | Biocontrol option for chili postharvest spoilage | Priy et al., 2019 | |
| G. resinaceum and Laetiporus sulphureus | X. vesicatoria and Aspergillus oryzae | Antibacterial and antifungal (in vitro) | Crude extracts suppressed growth of pathogens from Eucalyptus plantations | Supports integrated pest management in forestry |
Antimicrobial activity of Ganoderma spp. against plant pathogens.
8 Challenges and limitations of Ganoderma in antimicrobial applications
Although Ganoderma, especially G. lucidum, has demonstrated promising antimicrobial properties, several key challenges limit its broader adoption in medical and agricultural settings. These challenges primarily stem from variability in species, inconsistency in extract composition, and a lack of robust human clinical research specifically targeting antimicrobial use. A major hurdle is the natural variation in bioactive compounds among different Ganoderma species. Each species produces a unique blend of compounds—such as polysaccharides, triterpenoids, and phenolics—which directly influences their antimicrobial efficacy. Even within the same species, factors like geographical origin, climate, substrate, and cultivation conditions can alter the concentration and types of active molecules. This variability makes it difficult to predict or compare the antimicrobial strength of different extracts, reducing their reliability as standardized treatments. Another significant limitation lies in the difficulty of standardizing Ganoderma extracts. Unlike conventional pharmaceuticals that are based on single, well-defined molecules, Ganoderma extracts are complex mixtures. Depending on the extraction method used—whether water-based or alcohol-based—the resulting compounds and their concentrations can vary greatly. This leads to inconsistent therapeutic profiles, making dosage optimization and reproducibility a challenge. Furthermore, there is currently no universally accepted quality control standard for Ganoderma products, which adds another layer of uncertainty for clinical or commercial use. Perhaps the most critical limitation is the lack of extensive human clinical trials specifically designed to assess antimicrobial effects of Ganoderma. While laboratory and animal studies have shown promising results against bacteria, fungi, and viruses, human trials remain scarce. Most clinical research has focused on immune modulation, cancer support, and liver protection, rather than on infectious diseases. Without rigorous clinical testing, questions remain about its safety, appropriate dosing, and real-world efficacy. This lack of data also presents a barrier to regulatory approval and mainstream medical acceptance, hindering the development of Ganoderma-based antimicrobial therapies. Although Ganoderma holds great promise as a natural antimicrobial agent, issues related to species variability, extract standardization, and insufficient clinical evidence must be addressed before it can be reliably integrated into therapeutic or agricultural practices.
9 Future research directions for Ganoderma in antimicrobial applications
The growing recognition of antimicrobial properties of Ganoderma highlights several critical research avenues that could unlock its full therapeutic potential. First and foremost, standardizing Ganoderma extracts is essential to ensure consistency in their bioactive compounds, such as polysaccharides, triterpenoids, and phenolics. Variations in species, cultivation methods, and extraction techniques currently lead to unpredictable antimicrobial effects, limiting reproducibility in both research and clinical applications. Future studies should focus on optimizing extraction protocols and determining minimum effective concentrations to create reliable, high-quality formulations suitable for pharmaceutical use. Another promising direction involves developing Ganoderma-based antimicrobial drugs or supplements. Its bioactive compounds have demonstrated broad-spectrum activity against bacteria, fungi, and viruses, making them strong candidates for novel treatments. Given the escalating threat of AMR, Ganoderma’s multi-target mechanisms—including cell wall disruption, nucleic acid synthesis inhibition, and oxidative stress induction—could provide alternative therapies that pathogens struggle to resist. Perhaps most compelling is the potential for Ganoderma to enhance conventional antibiotics through synergistic combinations. Preliminary evidence suggests that pairing Ganoderma extracts with existing antimicrobials may improve efficacy while reducing required dosages, thereby minimizing side effects and delaying resistance. Future research should systematically investigate these interactions, particularly against drug-resistant strains, as well as explore the role of Ganoderma as an adjunct therapy for fungal and viral infections in immunocompromised patients. By addressing these priorities, Ganoderma could transition from a traditional remedy to a scientifically validated antimicrobial agent, offering new solutions in an era of increasing treatment challenges.
10 Conclusion
Ganoderma exhibits significant promise as a natural source of antimicrobial agents, with its bioactive compounds—polysaccharides, triterpenoids, phenolic compounds, and proteins—demonstrating a variety of mechanisms to combat bacterial, fungal, and viral infections. These compounds function by disrupting microbial cell walls, inhibiting nucleic acid synthesis, modulating the immune system, and regulating oxidative stress, offering a multi-targeted approach to pathogen inhibition. However, it is important to note that there may be potential risks or limitations associated with the use of Ganoderma as an antimicrobial agent, which should be thoroughly investigated in future research. Numerous in vitro and preclinical studies have already illustrated Ganoderma’s potential to be developed into therapeutic agents, especially in light of the growing global concern over AMR. Future research should prioritize clinical trials to validate Ganoderma’s efficacy in human subjects, particularly for its antimicrobial applications. Standardizing Ganoderma extracts is another critical area that would facilitate consistency in research and therapeutic use. In addition, identifying and isolating specific active compounds within Ganoderma may allow for more targeted drug development, potentially leading to the creation of new antimicrobial drugs or supplements. Furthermore, exploring synergistic effects with conventional antibiotics could offer new solutions to enhance treatment efficacy and reduce drug resistance. Continued investigation into these areas will be key to unlocking Ganoderma’s full potential as a vital player in the future of antimicrobial therapies.
Statements
Author contributions
SK: Conceptualization, Investigation, Methodology, Writing – original draft, Writing – review & editing. NP: Methodology, Software, Writing – original draft, Writing – review & editing. KH: Conceptualization, Investigation, Methodology, Writing – original draft, Writing – review & editing. IP: Conceptualization, Methodology, Writing – original draft, Writing – review & editing.
Funding
The author(s) declare that financial support was received for the research and/or publication of this article. Samantha C. Karunarathna thanks the High-Level Talent Recruitment Plan of Yunnan Province (“High-End Foreign Experts” Program), the National Natural Science Foundation of China (Grant No. 32260004), and Key Laboratory of Yunnan Provincial Department of Education of the Deep-Time Evolution on Biodiversity from the Origin of the Pearl River, Qujing Normal University, Qujing, Yunnan 655011, China, for their support. We also extend our gratitude to Chiang Mai University, Thailand, for partial support of this research.
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Generative AI statement
The author(s) declare that no Generative AI was used in the creation of this manuscript.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
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Summary
Keywords
antimicrobial activity, biofilm inhibition, pathogenic bacteria, polysaccharides, synergistic effects, triterpenoids
Citation
Karunarathna SC, Patabendige NM, Hapuarachchi KK and Promputtha I (2025) Exploring the health benefits of Ganoderma: antimicrobial properties and mechanisms of action. Front. Cell. Infect. Microbiol. 15:1535246. doi: 10.3389/fcimb.2025.1535246
Received
27 November 2024
Accepted
28 May 2025
Published
18 July 2025
Volume
15 - 2025
Edited by
Blake Billmyre, University of Georgia, United States
Reviewed by
Sabulal Baby, Jawaharlal Nehru Tropical Botanic Garden and Research Institute, India
Prashant R. Desai, University of Wisconsin-Madison, United States
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© 2025 Karunarathna, Patabendige, Hapuarachchi and Promputtha.
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*Correspondence: Itthayakorn Promputtha, itthayakorn.p@cmu.ac.th; Kalani K. Hapuarachchi, kalanifirst@yahoo.com
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