Coumarins link rhizobacteria perception in roots to systemic resistance in leaves
Induced systemic resistance (ISR) is activated in leaves upon root colonization by beneficial microbes, yet the signals linking rhizosphere perception to shoot immunity remain unknown. In the Arabidopsis thaliana-Pseudomonas simiae WCS417 model interaction, the root-specific transcription factor MYB72 and its target gene BGLU42 regulate ISR and the production, activation, and root secretion of…
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