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      ROS-related redox regulation and signaling in plants.

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          Abstract

          As sessile oxygenic organisms with a plastic developmental programme, plants are uniquely positioned to exploit reactive oxygen species (ROS) as powerful signals. Plants harbor numerous ROS-generating pathways, and these oxidants and related redox-active compounds have become tightly embedded into plant function and development during the course of evolution. One dominant view of ROS-removing systems sees them as beneficial antioxidants battling to keep damaging ROS below dangerous levels. However, it is now established that ROS are a necessary part of subcellular and intercellular communication in plants and that some of their signaling functions require ROS-metabolizing systems. For these reasons, it is suggested that "ROS processing systems" would be a more accurate term than "antioxidative systems" to describe cellular components that are most likely to interact with ROS and, in doing so, transmit oxidative signals. Within this framework, our update provides an overview of the complexity and compartmentation of ROS production and removal. We place particular emphasis on the importance of ROS-interacting systems such as the complex cellular thiol network in the redox regulation of phytohormone signaling pathways that are crucial for plant development and defense against external threats.

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          Author and article information

          Journal
          Semin. Cell Dev. Biol.
          Seminars in cell & developmental biology
          Elsevier BV
          1096-3634
          1084-9521
          Aug 2018
          : 80
          Affiliations
          [1 ] Institute of Plant Sciences Paris-Saclay IPS2, Univ Paris Sud, CNRS, INRA, UnivEvry, Univ Paris-Diderot, Sorbonne Paris-Cite, Universite Paris-Saclay, Rue de Noetzlin, 91405 Orsay, France. Electronic address: graham.noctor@u-psud.fr.
          [2 ] Laboratoire Génome et Développement des Plantes, Université Perpignan Via Domitia, F-66860 Perpignan, France; Laboratoire Génome et Développement des Plantes, CNRS, F-66860 Perpignan, France.
          [3 ] Centre for Plant Sciences, School of Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK.
          Article
          S1084-9521(17)30246-X
          10.1016/j.semcdb.2017.07.013
          28733165
          8e6158f1-1e22-41b2-8490-7b36a4840183
          History

          Reactive oxygen species,Thioredoxin,Thiol,Antioxidant,Arabidopsis thaliana,Ascorbate,Glutaredoxin,Glutathione,Hydrogen peroxide (H(2)O(2)),Oxidoreduction

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