Bacterial stress responses are crucial for bacterial survival, especially during infection, and are closely linked to virulence. Bacteria encounter various stresses within a host environment, such as changes in pH, temperature, osmolarity, reactive oxygen species, nutrient availability, and exposure to antimicrobial compounds etc. These stresses trigger specific responses that allow bacteria to activate defense systems, like antioxidant enzymes, promote biofilm formation, and influence expression of genes encoding various virulent factors like adhesins and toxins as well as secretion systems, for the invasion of host cells, evasion of the immune system and further facilitation of infection in the host, ultimately contributing to disease. Stress responses can also play a role in antibiotic resistance by inducing the expression of efflux pumps, modifying cell surface components, or enhancing DNA repair mechanisms. Understanding the mechanisms of these stress responses in the bacterial virulence is essential for developing new therapeutic strategies to prevent bacterial infections and antimicrobial resistance.

This Research Topic aims to delve into the dynamic roles and mechanisms that bacterial stress responses play in pathogenesis. Bacteria encounter numerous stresses in host environments and often employ sophisticated strategies, such as upregulating antioxidant enzyme systems, undergoing metabolic reprogramming, and forming resilient biofilms, to survive and evade immune-mediated elimination. Cutting-edge advancements in multi-omics technologies, coupled with insights from single-cell analyses, have significantly enhanced our comprehension of these bacterial adaptation strategies. By encouraging further research into these complex interactions, we can gain a nuanced understanding of host-pathogen dynamics, uncovering critical insights. This, in turn, holds the potential to pinpoint novel targets for developing innovative antimicrobial therapies, effectively combating infectious diseases and overcoming resistance challenges.

We welcome a wide range of manuscripts—including original research articles, case reports, and comprehensive reviews—that address, but are not limited to, the following themes:

1. Stress responses network of pathogenic bacteria in the host and environment

2. Expression and genetic regulation of virulence factors during host-pathogen interaction

3. Impact of stress responses on innate immune systems

4. Genomics, transcriptomics, proteomics and metabolomics of stress responses in the host and environment

5. Structural biology of factors involving pathogenesis.

6. Stress responses and biofilm information, persistence and antibiotic resistance

7. Therapeutic approaches targeting bacterial resistance to various stress

If you are interested in submitting or have any questions, please contact the journal email: bacteriology@frontiersin.org.

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Bacterial Stress Responses and Virulence