Light and jasmonic acid coordinately regulate the phosphate responses under shade and phosphate starvation conditions in Arabidopsis.

ABSTRACT: In the natural ecosystem, plants usually grow at high vegetation density for yield maximization. The high-density planting triggers a variety of strategies to avoid canopy shade and competes with their neighbors for light and nutrition, which are collected termed shade avoidance responses. The molecular mechanism underlying shade avoidance and nutrition has expanded largely in the past decade; however, how these two responses intersect remains poorly understood. Here, we show that simulated shade undermined Pi starvation response and the phytohormone JA is involved in this process. We found that the JA signaling repressor JAZ proteins directly interact with PHR1 to repress its transcriptional activity on downstream targets, including phosphate starvation induced genes. Furthermore, FHY3 an

SUBMITTER: Sun Y 

PROVIDER: S-EPMC10290274 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature