Biophysics; Cyclic electron flow; Cytochrome b(6)f; Photosynthesis; Photosystem I; Plastoquinone
Abstract :
[en] Apart from the canonical light-driven linear electron flow (LEF) from water to CO2, numerous regulatory and alternative electron transfer pathways exist in chloroplasts. One of them is the cyclic electron flow around Photosystem I (CEF), contributing to photoprotection of both Photosystem I and II (PSI, PSII) and supplying extra ATP to fix atmospheric carbon. Nonetheless, CEF remains an enigma in the field of functional photosynthesis as we lack understanding of its pathway. Here, we address the discrepancies between functional and genetic/biochemical data in the literature and formulate novel hypotheses about the pathway and regulation of CEF based on recent structural and kinetic information.
Nawrocki, Wojciech J.; Institut de Biologie Physico-Chimique (Paris)
Bailleul, Benjamin; Institut de Biologie Physico-Chimique (Paris)
Picot, Daniel; Institut de Biologie Physico-Chimique (Paris)
Cardol, Pierre ; Université de Liège - ULiège > Département des sciences de la vie > Génétique et physiologie des microalgues
Rappaport, Fabrice; Institut de Biologie Physico-Chimique (Paris)
Wollman, Françis Andrè; Institut de Biologie Physico-Chimique (Paris)
Joliot, Pierre A.; Institut de Biologie Physico-Chimique (Paris)
Language :
English
Title :
The mechanism of cyclic electron flow.
Publication date :
2019
Journal title :
Biochimica et Biophysica Acta. Bioenergetics
ISSN :
0005-2728
eISSN :
1879-2650
Publisher :
Elsevier, Netherlands
Volume :
1860
Issue :
5
Pages :
433-438
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 682580 - BEAL - Bioenergetics in microalgae : regulation modes of mitochondrial respiration, photosynthesis, and fermentative pathways, and their interactions in secondary algae
Funders :
CE - Commission Européenne [BE]
Commentary :
Copyright (c) 2018 Elsevier B.V. All rights reserved.
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