Cross-feeding niches among commensal leaf bacteria are shaped by the interaction of strain-level diversity and resource availability.

ABSTRACT: Leaf microbiomes play crucial roles in plant health, making it important to understand the origins and functional relevance of their diversity. High strain-level leaf bacterial genetic diversity is known to be relevant for interactions with hosts, but little is known about its relevance for interactions with the multitude of diverse co-colonizing microorganisms. In leaves, nutrients like amino acids are major regulators of microbial growth and activity. Using metabolomics of leaf apoplast fluid, we found that different species of the plant genus Flaveria considerably differ in the concentrations of high-cost amino acids. We investigated how these differences affect bacterial community diversity and assembly by enriching leaf bacteria in vitro with only sucrose or sucrose + amino acids as p

SUBMITTER: Murillo-Roos M 

PROVIDER: S-EPMC9381498 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature