The genomes uncoupled-dependent signalling pathway coordinates plastid biogenesis with the synthesis of anthocyanins.

ABSTRACT: In recent years, it has become evident that plants perceive, integrate and communicate abiotic stress signals through chloroplasts. During the process of acclimation plastid-derived, retrograde signals control nuclear gene expression in response to developmental and environmental cues leading to complex genetic and metabolic reprogramming to preserve cellular homeostasis under challenging environmental conditions. Upon stress-induced dysfunction of chloroplasts, GENOMES UNCOUPLED (GUN) proteins participate in the repression of PHOTOSYNTHESIS-ASSOCIATED NUCLEAR GENES (PHANGs). Here, we show that the retrograde signal emitted by, or communicated through, GUN-proteins is also essential to induce the accumulation of photoprotective anthocyanin pigments when chloroplast developmen

SUBMITTER: Richter AS 

PROVIDER: S-EPMC7209955 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature