Small changes in rhizosphere microbiome composition predict disease outcomes earlier than pathogen density variations.

ABSTRACT: Even in homogeneous conditions, plants facing a soilborne pathogen tend to show a binary outcome with individuals either remaining fully healthy or developing severe to lethal disease symptoms. As the rhizosphere microbiome is a major determinant of plant health, we postulated that such a binary outcome may result from an early divergence in the rhizosphere microbiome assembly that may further cascade into varying disease suppression abilities. We tested this hypothesis by setting up a longitudinal study of tomato plants growing in a natural but homogenized soil infested with the soilborne bacterial pathogen Ralstonia solanacearum. Starting from an originally identical species pool, individual rhizosphere microbiome compositions rapidly diverged into multiple configurations during the plan

SUBMITTER: Gu Y 

PROVIDER: S-EPMC9478146 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature