ORIGINAL RESEARCH article
Front. Microbiol.
Sec. Microbe and Virus Interactions with Plants
Volume 16 - 2025 | doi: 10.3389/fmicb.2025.1641696
This article is part of the Research TopicSymbiotic Interactions in Microbial-facilitated Vegetation Restoration and Agricultural ManagementView all 15 articles
Investigating the Growth-Promoting Effects of Endophytic Fungi Isolated from Camellia luteoflora on Tomato Seedlings
Provisionally accepted
- 1Administration of Chishui Alsophila National Nature Reserve, chishui, China
- 2生命科学学院, 四川省 / 成都市 / 武侯区, China
- 3Sichuan University, Chengdu, China
- 4Sanya Aviation and Tourism College, Sanya, China
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Camellia luteoflora, an endangered plant species native to China, faces significant conservation challenges due to its limited habitat and vulnerability to pathogens. Investigating the endophytic fungal communities within C. luteoflora, particularly those that promote plant growth and stress resilience, is crucial. Through systematic evaluation, the growth-promoting ability of endophytic fungi from C. luteoflora and the effects of inoculation on the growth of tomato seedlings were investigated. Among the 35 isolated endophytic fungi, 7 strains exhibited the ability to synthesize indole-3-acetic acid (IAA), 24 strains showed nitrogen-fixing abilities, 27 strains were capable of producing protease, and 15 endophytic strains had a siderophore utilization (SU) value exceeding 10.00%. Furthermore, 5 strains were identified as capable of potassium solubilization, and 7 strains as phosphorus solubilizers. Three strains demonstrated a dual ability for phosphorus and potassium solubilization. The endophytic fungal inocula derived from endophytic fungi CG-II-1, CJ-V-1, and DJ-I-4 resulted in significant enhancement of chlorophyll content in tomato seedlings, as well as promoting root development and biomass accumulation. This study found that CJ-V-1 (Colletotrichum siamense) and CG-II-1 (Helotiales sp.) have significant potential for promoting plant growth, creating opportunities for utilizing these strains as innovative resources for endophytic fungal inocula development.
Keywords: Camellia luteoflora, endophytic fungi, endophytic fungal inocula, Tomato seedlings, Growth promoting effect
Received: 05 Jun 2025; Accepted: 15 Oct 2025.
Copyright: © 2025 bai, Yan, Guo, Yi, Liu and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Li Wang, wangli_scu@scu.edu.cn
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