1. The Cytochrome b 6 f Complex: A Regulatory Hub Controlling Electron Flow and the Dynamics of Photosynthesis?
- Author
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Jun Minagawa, Giles N. Johnson, Giovanni Finazzi, Physiologie cellulaire et végétale (LPCV), Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, Faculty of Life Sciences University of Manchester, University of Manchester [Manchester], Cramer, William A., Kallas, Toivo, Martin-Laffon, Jacqueline, Cramer, William A., Kallas, Toivo, UMR 1417 PCV Laboratoire de Physiologie Cellulaire Végétale, Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut National de la Recherche Agronomique (INRA), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), National Institute for Basic Biology [Okazaki] (NIBB), Graduate University for Advanced Studies [Hayama] (SOKENDAI), Faculty of Life Sciences, University of Vienna [Vienna], National Institute for Basic Biology, National Institute for Basic Biology (NIBB), Université Grenoble Alpes (UGA), and Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG)
- Subjects
0106 biological sciences ,cytochrome ,Bioenergetics ,Photosynthesis ,01 natural sciences ,03 medical and health sciences ,Carbon assimilation ,Botany ,[SDV.BBM] Life Sciences [q-bio]/Biochemistry, Molecular Biology ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,[SDV.BBM]Life Sciences [q-bio]/Biochemistry, Molecular Biology ,photosynthèse ,ComputingMilieux_MISCELLANEOUS ,030304 developmental biology ,0303 health sciences ,biology ,Cytochrome b ,Cytochrome b6f complex ,oxydoréduction ,Protein composition ,Plant ,oxidoreduction ,Order (biology) ,Rieske protein ,biology.protein ,Biophysics ,Electron flow ,010606 plant biology & botany - Abstract
Chapter 22; Photosynthetic organisms must respond to several external stimuli to adjust their photosynthetic performances in order to keep a high capacity of carbon assimilation and avoid photodamage. They do so integrating processes occurring at different time scales starting from very fast light harvesting, down to slow changes of electron flow and protein composition of the photosynthetic apparatus. Central to these regulatory mechanisms is the cytochrome b(6)f complex, which regulates intersystem electron flow via photosynthetic control and modulates light harvesting capacity by acting as a redox sensor to trigger an acclimation process named state transitions. In this chapter we describe how the cytochrome b(6)f complex performs to regulate these different functions in both plants and microalgae, proposing new mechanisms of regulation, and critically discussing how these processes are compatible with the existing literature on the structure and function of this complex.
- Published
- 2016
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