Light-induced psbA translation in plants is triggered by photosystem II damage via an assembly-linked autoregulatory circuit

• Published in: Proceedings of the National Academy of Sciences - PNAS Vol. 117; no. 35; pp. 21775 - 21784
• Main Authors: Chotewutmontri, Prakitchai, Barkan, Alice
• Format: Journal Article
• Language: English
• Published: United States National Academy of Sciences 01.09.2020
• Subjects: Arabidopsis - genetics; Arabidopsis - metabolism; Arabidopsis Proteins - genetics; Arabidopsis Proteins - metabolism; Assembly; Biological Sciences; Chlorophyll Binding Proteins - metabolism; Chloroplasts; Chloroplasts - metabolism; Circuits; Damage; Electron transport; Elongation; Eukaryotic Initiation Factors - metabolism; Light; Membrane Proteins - metabolism; mRNA; Mutants; Occupancy; Photodegradation; Photosynthesis; Photosystem II; Photosystem II Protein Complex - genetics; Photosystem II Protein Complex - metabolism; Plants - genetics; Protein Biosynthesis - physiology; Protein Processing, Post-Translational - physiology; Recruitment; Ribosomes; Ribosomes - metabolism; RNA, Messenger - metabolism; Transcription, Genetic; Translation; Translation elongation; Zea mays - genetics; Zea mays - metabolism; photosystem II; translational control; chloroplast; psbA

The D1 reaction center protein of photosystem II (PSII) is subject to light-induced damage. Degradation of damaged D1 and its replacement by nascent D1 are at the heart of a PSII repair cycle, without which photosynthesis is inhibited. In mature plant chloroplasts, light stimulates the recruitment o...