Unravelling the interplay of nitrogen nutrition and the Botrytis cinerea pectin lyase BcPNL1 in modulating Arabidopsis thaliana susceptibility.

ABSTRACT: In this study, we investigated the interplay between nitrogen nutrition and the pectin degradation dynamics during Arabidopsis and Botrytis interaction. Our findings revealed that infected detached leaves from nitrogen-sufficient plants released more pectin lyase (PNL)-derived oligogalacturonides compared to nitrogen-deficient ones. We then focused on BcPNL1, the most highly expressed Botrytis PNL upon infection. Using mutant strains lacking BcPNL1, we observed reduced pathogenicity, a delay in germination and a lag in triggering the plant defense response. Additionally, in nitrogen-sufficient detached leaves, the elevated expression of jasmonic acid repressor genes observed upon infection with the wild-type strain was abolished with the mutants. These results linked the increased producti

SUBMITTER: Daviere A 

PROVIDER: S-EPMC11807159 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature