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Towards a critical understanding of the photosystem II repair mechanism and its regulation during stress conditions

Title
Towards a critical understanding of the photosystem II repair mechanism and its regulation during stress conditions
Author(s)
Nath, KrishnaJajoo, AnjanaPoudyal, Roshan SharmaTimilsina, RupakPark, Yu ShinAro, Eva-MariNam, Hong GilLee, C. -H.
Issued Date
2013-11
Citation
FEBS Letters, v.587, no.21, pp.3372 - 3381
Type
Article
Author Keywords
Photodamage and PSII repair cycleSTN8 kinase and PSII core proteins phosphorylationProteases and D1 protein degradationReactive oxygen species (ROS)Ultra-violet radiation
Keywords
CENTER D1 PROTEINQUALITY-CONTROLARABIDOPSIS-THALIANAFTSH PROTEASESINGLET OXYGENDEG PROTEASESHEAT-STRESSPHOTOSYNTHETIC MEMBRANESTHYLAKOID MEMBRANESELECTRON-TRANSPORT
ISSN
0014-5793
Abstract
Photosystem II (PSII) is vulnerable to high light (HL) illumination resulting in photoinhibition. In addition to photoprotection mechanisms, plants have developed an efficient PSII repair mechanism to save themselves from irreversible damage to PSII under abiotic stresses including HL illumination. The phosphorylation/dephosphorylation cycle along with subsequent degradation of photodamaged D1 protein to be replaced by the insertion of a newly synthesized copy of D1 into the PSII complex, is the core function of the PSII repair cycle. The exact mechanism of this process is still under discussion. We describe the recent progress in identifying the kinases, phosphatases and proteases, and in understanding their involvement in the maintenance of thylakoid structure and the quality control of proteins by PSII repair cycle during photoinhibition. © 2013 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/1691
DOI
10.1016/j.febslet.2013.09.015
Publisher
WILEY-BLACKWELL
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Appears in Collections:
Department of New Biology CBRG(Complex Biology Research Group) 1. Journal Articles

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