The plant NADPH oxidase RBOHD is required for microbiota homeostasis in leaves.

ABSTRACT: The plant microbiota consists of a multitude of microorganisms that can affect plant health and fitness. However, it is currently unclear how the plant shapes its leaf microbiota and what role the plant immune system plays in this process. Here, we evaluated Arabidopsis thaliana mutants with defects in different parts of the immune system for an altered bacterial community assembly using a gnotobiotic system. While higher-order mutants in receptors that recognize microbial features and in defence hormone signalling showed substantial microbial community alterations, the absence of the plant NADPH oxidase RBOHD caused the most pronounced change in the composition of the leaf microbiota. The rbohD knockout resulted in an enrichment of specific bacteria. Among these, we identified Xanthomonas

SUBMITTER: Pfeilmeier S 

PROVIDER: S-EPMC7612668 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature