Cellular redox regulation,signaling, and stress response in plants |
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Authors: | Shigeru Shigeoka Takanori Maruta |
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Affiliation: | 1. Faculty of Agriculture, Department of Advanced Bioscience, Kinki University, Nara, Japanshigeoka@nara.kindai.ac.jp;3. Faculty of Agriculture, Department of Advanced Bioscience, Kinki University, Nara, Japan;4. Faculty of Life and Environmental Science, Department of Applied Bioscience and Biotechnology, Shimane University, Matsue, Japan |
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Abstract: | Cellular and organellar redox states, which are characterized by the balance between oxidant and antioxidant pool sizes, play signaling roles in the regulation of gene expression and protein function in a wide variety of plant physiological processes including stress acclimation. Reactive oxygen species (ROS) and ascorbic acid (AsA) are the most abundant oxidants and antioxidants, respectively, in plant cells; therefore, the metabolism of these redox compounds must be strictly and spatiotemporally controlled. In this review, we provided an overview of our previous studies as well as recent advances in (1) the molecular mechanisms and regulation of AsA biosynthesis, (2) the molecular and genetic properties of ascorbate peroxidases, and (3) stress acclimation via ROS-derived oxidative/redox signaling pathways, and discussed future perspectives in this field. |
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Keywords: | redox ascorbate reactive oxygen species stress plants |
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