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Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis

The D1 protein of Photosystem II (PSII), encoded by the psbA genes, is an indispensable component of oxygenic photosynthesis. Due to strongly oxidative chemistry of PSII water splitting, the D1 protein is prone to constant photodamage requiring its replacement, whereas most of the other PSII subunit...

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Autores principales: Mulo, Paula, Sicora, Cosmin, Aro, Eva-Mari
Formato: Texto
Lenguaje:English
Publicado: SP Birkhäuser Verlag Basel 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2776144/
https://www.ncbi.nlm.nih.gov/pubmed/19644734
http://dx.doi.org/10.1007/s00018-009-0103-6
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author Mulo, Paula
Sicora, Cosmin
Aro, Eva-Mari
author_facet Mulo, Paula
Sicora, Cosmin
Aro, Eva-Mari
author_sort Mulo, Paula
collection PubMed
description The D1 protein of Photosystem II (PSII), encoded by the psbA genes, is an indispensable component of oxygenic photosynthesis. Due to strongly oxidative chemistry of PSII water splitting, the D1 protein is prone to constant photodamage requiring its replacement, whereas most of the other PSII subunits remain ordinarily undamaged. In cyanobacteria, the D1 protein is encoded by a psbA gene family, whose members are differentially expressed according to environmental cues. Here, the regulation of the psbA gene expression is first discussed with emphasis on the model organisms Synechococcus sp. and Synechocystis sp. Then, a general classification of cyanobacterial D1 isoforms in various cyanobacterial species into D1(m), D1:1, D1:2, and D1′ forms depending on their expression pattern under acclimated growth conditions and upon stress is discussed, taking into consideration the phototolerance of different D1 forms and the expression conditions of respective members of the psbA gene family.
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spelling pubmed-27761442009-11-16 Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis Mulo, Paula Sicora, Cosmin Aro, Eva-Mari Cell Mol Life Sci Review The D1 protein of Photosystem II (PSII), encoded by the psbA genes, is an indispensable component of oxygenic photosynthesis. Due to strongly oxidative chemistry of PSII water splitting, the D1 protein is prone to constant photodamage requiring its replacement, whereas most of the other PSII subunits remain ordinarily undamaged. In cyanobacteria, the D1 protein is encoded by a psbA gene family, whose members are differentially expressed according to environmental cues. Here, the regulation of the psbA gene expression is first discussed with emphasis on the model organisms Synechococcus sp. and Synechocystis sp. Then, a general classification of cyanobacterial D1 isoforms in various cyanobacterial species into D1(m), D1:1, D1:2, and D1′ forms depending on their expression pattern under acclimated growth conditions and upon stress is discussed, taking into consideration the phototolerance of different D1 forms and the expression conditions of respective members of the psbA gene family. SP Birkhäuser Verlag Basel 2009-07-31 2009 /pmc/articles/PMC2776144/ /pubmed/19644734 http://dx.doi.org/10.1007/s00018-009-0103-6 Text en © The Author(s) 2009 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Review
Mulo, Paula
Sicora, Cosmin
Aro, Eva-Mari
Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis
title Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis
title_full Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis
title_fullStr Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis
title_full_unstemmed Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis
title_short Cyanobacterial psbA gene family: optimization of oxygenic photosynthesis
title_sort cyanobacterial psba gene family: optimization of oxygenic photosynthesis
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2776144/
https://www.ncbi.nlm.nih.gov/pubmed/19644734
http://dx.doi.org/10.1007/s00018-009-0103-6
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