Organic pollutant-induced long-distance ROS signaling drives plant systemic acquired acclimation via rhizomicrobiota.

ABSTRACT: Plants can recruit beneficial rhizomicrobes to combat environmental stimuli, but the upstream signaling through which plants sense stress to initiate rhizomicrobial recruitment still remains unclear. This study elucidates the role of long-distance ROS signaling in driving the recruitment of beneficial rhizobacteria to establish systemic acclimation following local organic pollutant stress. Plant leaves sense various organic pollutants to generate ROS, followed by the occurrence of a long-distance ROS wave from leaves to roots via a Ca²⁺-RBOH-ROS signaling module. Elevated ROS in roots plays dual functions. First, ROS stimulates plant carbon release into the rhizosphere by increasing the permeability of root cell membranes. The released carbon flux enriches plant-beneficial bacte

SUBMITTER: Li Y 

PROVIDER: S-EPMC12518830 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature