Thioredoxin m4 Controls Photosynthetic Alternative Electron Pathways in Arabidopsis1[C][W]
نویسندگان
چکیده
Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7265, Biologie Végétale et Microbiologie Environnementales, 13108 Saint-Paul-lez-Durance, France (A.C., S.V., N.B.-L., M.H., P.R., D.R.); Commissariat à l’Energie Atomique, Institut de Biologie Environnementale et Biotechnologie, Service de Biologie Végétale et Microbiologie Environnementales, Laboratoire d’Ecophysiologie Moléculaire des Plantes, 13108 Saint-Paul-lez-Durance, France (S.V., N.B.-L., M.H., P.R., D.R.); Université Aix-Marseille, 13108 SaintPaul-lez-Durance, France (A.C., S.V., N.B.-L., M.H., P.R., D.R.); Instituto de Agrobiotecnologia, Universidad Pública de Navarra-Consejo Superior de Investigaciones Científicas-Gobierno de Navarra, 31006 Pamplona, Spain (R.S.-B., I.F.); Institut National de la Recherche Agronomique, Laboratoire des Interactions PlantesMicroorganismes, Unité Mixte de Recherche 441, F-31326 Castanet-Tolosan, France (A.-C.C.); and Centre National de la Recherche Scientifique, Laboratoire des Interactions Plantes-Microorganismes, Unité Mixte de Recherche 2594, F-31326 Castanet-Tolosan, France (A.-C.C.)
منابع مشابه
Thioredoxin m4 controls photosynthetic alternative electron pathways in Arabidopsis.
In addition to the linear electron flow, a cyclic electron flow (CEF) around photosystem I occurs in chloroplasts. In CEF, electrons flow back from the donor site of photosystem I to the plastoquinone pool via two main routes: one that involves the Proton Gradient Regulation5 (PGR5)/PGRL1 complex (PGR) and one that is dependent of the NADH dehydrogenase-like complex. While the importance of CEF...
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Chloroplastic m-type thioredoxins (TRX m) are essential redox regulators in the light regulation of photosynthetic metabolism. However, recent genetic studies have revealed novel functions for TRX m in meristem development, chloroplast morphology, cyclic electron flow, and tetrapyrrole synthesis. The focus of this study is on the putative role of TRX m1, TRX m2, and TRX m4 in the biogenesis of ...
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Two different thiol redox systems exist in plant chloroplasts, the ferredoxin-thioredoxin (Trx) system, which depends on ferredoxin reduced by the photosynthetic electron transport chain and, thus, on light, and the NADPH-dependent Trx reductase C (NTRC) system, which relies on NADPH and thus may be linked to sugar metabolism in the dark. Previous studies suggested, therefore, that the two diff...
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