Phytochrome B regulates jasmonic acid-mediated defense response against Botrytis cinerea in Arabidopsis.

ABSTRACT: The phytochrome B mediated light signaling integrates with various phytohormone signalings to control plant immune response. However, it is still unclear whether phyB-mediated light signaling has an effect on the biosynthesis of jasmonate during plant defense response against Botrytis cinerea. In this study, we demonstrated that phyB-mediated light signaling has a role in this process. Initially, we confirmed that phyb plants were obviously less resistant to B. cinerea while phyB overexpressing plants showed significantly enhanced resistance. We also found that the expression of numerous JA biosynthesis genes was promoted upon treatment with red or white light when compared to that of darkness, and that this promotion is dependent on phyB. Consistent with the ge

SUBMITTER: Xiang S 

PROVIDER: S-EPMC8897165 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature