Oxidative stress changes interactions between 2 bacterial species from competitive to facilitative.

ABSTRACT: Knowing how species interact within microbial communities is crucial to predicting and controlling community dynamics, but interactions can depend on environmental conditions. The stress-gradient hypothesis (SGH) predicts that species are more likely to facilitate each other in harsher environments. Even if the SGH gives some intuition, quantitative modeling of the context-dependency of interactions requires understanding the mechanisms behind the SGH. In this study, we show with both experiments and a theoretical analysis that varying the concentration of a single compound, linoleic acid (LA), modifies the interaction between 2 bacterial species, Agrobacterium tumefaciens and Comamonas testosteroni, from competitive at a low concentration, to facilitative at higher concentrations where LA

SUBMITTER: Di Martino R 

PROVIDER: S-EPMC10881020 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature