title: Redox- and Reactive Oxygen Species-Dependent Signaling into and out of the Photosynthesizing Chloroplast.
abstract: Photosynthesis is a high-rate redox metabolic process that is subjected to rapid changes in input parameters, particularly light. Rapid transients of photon capture, electron fluxes, and redox potentials during photosynthesis cause reactive oxygen species (ROS) to be released, including singlet oxygen, superoxide anion radicals, and hydrogen peroxide. Thus, the photosynthesizing chloroplast functions as a conditional source of important redox and ROS information, which is exploited to tune processes both inside the chloroplast and, following retrograde release or processing, in the cytosol and nucleus. Analyses of mutants and comparative transcriptome profiling have led to the identification of these processes and associated players and have allowed the specificity and generality of response patterns to be defined. The release of ROS and oxidation products, envelope permeabilization (for larger molecules), and metabolic interference with mitochondria and peroxisomes produce an intricate ROS and redox signature, which controls acclimation processes. This photosynthesis-related ROS and redox information feeds into various pathways (e.g. the mitogen-activated protein kinase and OXI1 signaling pathways) and controls processes such as gene expression and translation.
authors.affiliation: University of Bielefeld, Faculty of Biology, Department of Biochemistry and Physiology of Plants, D-33615 Bielefeld, Germany (K.-J.D.);Ege University, Faculty of Science, Department of Biology, TR-35100 Izmir, Turkey (I.T.); andInstitute for Integrative Biology of the Cell, Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Université Paris-Sud, Université Paris-Saclay, F-91198 Gif-sur-Yvette cedex, France (A.K.-L.) karl-josef.dietz@uni-bielefeld.de.
authors.forename: Karl-Josef
authors.initials: KJ
authors.lastname: Dietz
authors.affiliation: University of Bielefeld, Faculty of Biology, Department of Biochemistry and Physiology of Plants, D-33615 Bielefeld, Germany (K.-J.D.);Ege University, Faculty of Science, Department of Biology, TR-35100 Izmir, Turkey (I.T.); andInstitute for Integrative Biology of the Cell, Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Université Paris-Sud, Université Paris-Saclay, F-91198 Gif-sur-Yvette cedex, France (A.K.-L.).
authors.forename: Ismail
authors.identifier: 0000-0001-9042-6870
authors.initials: I
authors.lastname: Turkan
authors.affiliation: University of Bielefeld, Faculty of Biology, Department of Biochemistry and Physiology of Plants, D-33615 Bielefeld, Germany (K.-J.D.);Ege University, Faculty of Science, Department of Biology, TR-35100 Izmir, Turkey (I.T.); andInstitute for Integrative Biology of the Cell, Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Université Paris-Sud, Université Paris-Saclay, F-91198 Gif-sur-Yvette cedex, France (A.K.-L.).
authors.forename: Anja
authors.initials: A
authors.lastname: Krieger-Liszkay
mesh_terms: D000064:Acclimatization; D002467:Cell Nucleus / Q000378:metabolism; D002736:Chloroplasts / Q000378:metabolism*; D003600:Cytosol / Q000378:metabolism; D020869:Gene Expression Profiling; D008928:Mitochondria / Q000378:metabolism; D020928:Mitogen-Activated Protein Kinases / Q000378:metabolism; D010084:Oxidation-Reduction; D020675:Peroxisomes / Q000378:metabolism; D010788:Photosynthesis / Q000502:physiology*; D010944:Plants / Q000378:metabolism; D017382:Reactive Oxygen Species / Q000378:metabolism*; D015398:Signal Transduction
chemical_list: D017382:Reactive Oxygen Species; D020928:Mitogen-Activated Protein Kinases