Rhizobacterium-derived diacetyl modulates plant immunity in a phosphate-dependent manner

ABSTRACT: Plants establish mutualistic associations with beneficial microbes while deploying the immune system to defend against pathogenic ones. Little is known about the interplay between mutualism and immunity and the mediator molecules enabling such crosstalk. Here we show that plants respond differentially to a volatile bacterial compound through integral modulation of the immune system and the phosphate-starvation response (PSR) system, resulting in either mutualism or immunity. We found that exposure of Arabidopsis thaliana to a known plant growth-promoting rhizobacterium can unexpectedly have either beneficial or deleterious effects to plants. The beneficial-to-deleterious transition is dependent on availability of phosphate to the plants and is mediated by diacetyl, a bacterial volatile com

SUBMITTER: Huiming Zhang 

PROVIDER: S-SCDT-EMBOJ-2019-102602 | biostudies-other |

REPOSITORIES: biostudies-other