Root-specific camalexin biosynthesis controls the plant growth-promoting effects of multiple bacterial strains.

ABSTRACT: Plants in their natural ecosystems interact with numerous microorganisms, but how they influence their microbiota is still elusive. We observed that sulfatase activity in soil, which can be used as a measure of rhizosphere microbial activity, is differently affected by Arabidopsis accessions. Following a genome-wide association analysis of the variation in sulfatase activity we identified a candidate gene encoding an uncharacterized cytochrome P450, CYP71A27 Loss of this gene resulted in 2 different and independent microbiota-specific phenotypes: A lower sulfatase activity in the rhizosphere and a loss of plant growth-promoting effect by Pseudomonas sp. CH267. On the other hand, tolerance to leaf pathogens was not affected, which agreed with prevalent expression of

SUBMITTER: Koprivova A 

PROVIDER: S-EPMC6681745 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature