Perturbation of protein homeostasis brings plastids at the crossroad between repair and dismantling.

ABSTRACT: The chloroplast proteome is a dynamic mosaic of plastid- and nuclear-encoded proteins. Plastid protein homeostasis is maintained through the balance between de novo synthesis and proteolysis. Intracellular communication pathways, including the plastid-to-nucleus signalling and the protein homeostasis machinery, made of stromal chaperones and proteases, shape chloroplast proteome based on developmental and physiological needs. However, the maintenance of fully functional chloroplasts is costly and under specific stress conditions the degradation of damaged chloroplasts is essential to the maintenance of a healthy population of photosynthesising organelles while promoting nutrient redistribution to sink tissues. In this work, we have addressed this complex regulatory chloroplast-quality-cont

SUBMITTER: Tadini L 

PROVIDER: S-EPMC10355426 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature