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Higher plant antioxidants and redox signaling under environmental stresses.
C R Biol. 2008 Jun; 331(6):433-41.CR

Abstract

Main antioxidants in higher plants include glutathione, ascorbate, tocopherol, proline, betaine, and others, which are also information-rich redox buffers and important redox signaling components that interact with biomembrane-related compartments. As an evolutionary consequence of aerobic life for higher plants, reactive oxygen species (ROS) are formed by partial reduction of molecular oxygen. The above enzymatic and non-enzymatic antioxidants in higher plants can protect their cells from oxidative damage by scavenging ROS. In addition to crucial roles in defense system and as enzyme cofactors, antioxidants influence higher plant growth and development by modifying processes from mitosis and cell elongation to senescence and death. Most importantly, they provide essential information on cellular redox state, and regulate gene expression associated with biotic and abiotic stress responses to optimize defense and survival. An overview of the literature is presented in terms of main antioxidants and redox signaling in plant cells. Special attention is given to ROS and ROS-antioxidant interaction as a metabolic interface for different types of signals derived from metabolism and from the changing environment, which regulates the appropriate induction of acclimation processes or, execution of cell death programs, which are the two essential directions for higher plants.

Authors+Show Affiliations

State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Northwest A&F University, Yangling, China. shaohongbo@qust.edu.cnNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Review

Language

eng

PubMed ID

18510996

Citation

Shao, Hong-bo, et al. "Higher Plant Antioxidants and Redox Signaling Under Environmental Stresses." Comptes Rendus Biologies, vol. 331, no. 6, 2008, pp. 433-41.
Shao HB, Chu LY, Shao MA, et al. Higher plant antioxidants and redox signaling under environmental stresses. C R Biol. 2008;331(6):433-41.
Shao, H. B., Chu, L. Y., Shao, M. A., Jaleel, C. A., & Mi, H. M. (2008). Higher plant antioxidants and redox signaling under environmental stresses. Comptes Rendus Biologies, 331(6), 433-41. https://doi.org/10.1016/j.crvi.2008.03.011
Shao HB, et al. Higher Plant Antioxidants and Redox Signaling Under Environmental Stresses. C R Biol. 2008;331(6):433-41. PubMed PMID: 18510996.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Higher plant antioxidants and redox signaling under environmental stresses. AU - Shao,Hong-bo, AU - Chu,Li-ye, AU - Shao,Ming-an, AU - Jaleel,Cheruth Abdul, AU - Mi,Hong-mei, Y1 - 2008/04/28/ PY - 2008/02/24/received PY - 2008/03/26/revised PY - 2008/03/31/accepted PY - 2008/5/31/pubmed PY - 2008/8/9/medline PY - 2008/5/31/entrez SP - 433 EP - 41 JF - Comptes rendus biologies JO - C R Biol VL - 331 IS - 6 N2 - Main antioxidants in higher plants include glutathione, ascorbate, tocopherol, proline, betaine, and others, which are also information-rich redox buffers and important redox signaling components that interact with biomembrane-related compartments. As an evolutionary consequence of aerobic life for higher plants, reactive oxygen species (ROS) are formed by partial reduction of molecular oxygen. The above enzymatic and non-enzymatic antioxidants in higher plants can protect their cells from oxidative damage by scavenging ROS. In addition to crucial roles in defense system and as enzyme cofactors, antioxidants influence higher plant growth and development by modifying processes from mitosis and cell elongation to senescence and death. Most importantly, they provide essential information on cellular redox state, and regulate gene expression associated with biotic and abiotic stress responses to optimize defense and survival. An overview of the literature is presented in terms of main antioxidants and redox signaling in plant cells. Special attention is given to ROS and ROS-antioxidant interaction as a metabolic interface for different types of signals derived from metabolism and from the changing environment, which regulates the appropriate induction of acclimation processes or, execution of cell death programs, which are the two essential directions for higher plants. SN - 1631-0691 UR - https://www.unboundmedicine.com/medline/citation/18510996/Higher_plant_antioxidants_and_redox_signaling_under_environmental_stresses_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1631-0691(08)00086-3 DB - PRIME DP - Unbound Medicine ER -