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ROS and RNS in plant physiology: an overview.
J Exp Bot. 2015 May; 66(10):2827-37.JE

Abstract

The production of reactive oxygen species (ROS) is the unavoidable consequence of aerobic life. ROS is a collective term that includes both oxygen radicals, like superoxide (O 2. -) and hydroxyl (·OH) radicals, and other non-radicals such as hydrogen peroxide (H2O2), singlet oxygen ((1)O2 or (1)Δg), etc. In plants, ROS are produced in different cell compartments and are oxidizing species, particularly hydroxyl radicals and singlet oxygen, that can produce serious damage in biological systems (oxidative stress). However, plant cells also have an array of antioxidants which, normally, can scavenge the excess oxidants produced and so avoid deleterious effects on the plant cell bio-molecules. The concept of 'oxidative stress' was re-evaluated in recent years and the term 'oxidative signalling' was created. This means that ROS production, apart from being a potentially harmful process, is also an important component of the signalling network that plants use for their development and for responding to environmental challenges. It is known that ROS play an important role regulating numerous biological processes such as growth, development, response to biotic and environmental stresses, and programmed cell death. The term reactive nitrogen species (RNS) includes radicals like nitric oxide (NO·) and nitric dioxide (NO2.), as well as non-radicals such as nitrous acid (HNO2) and dinitrogen tetroxide (N2O4), among others. RNS are also produced in plants although the generating systems have still not been fully characterized. Nitric oxide (NO·) has an important function as a key signalling molecule in plant growth, development, and senescence, and RNS, like ROS, also play an important role as signalling molecules in the response to environmental (abiotic) stress. Similarly, NO· is a key mediator, in co-operation with ROS, in the defence response to pathogen attacks in plants. ROS and RNS have been demonstrated to have an increasingly important role in biology and medicine.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Del Río LA
Department of Biochemistry and Cell & Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Apartado 419, E-18080 Granada, Spain luisalfonso.delrio@eez.csic.es.

MeSH

Gene Expression Regulation, PlantPlant Physiological PhenomenaPlantsReactive Nitrogen SpeciesReactive Oxygen Species

Pub Type(s)

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

Language

eng

PubMed ID

25873662

Citation

Del Río, Luis A.. "ROS and RNS in Plant Physiology: an Overview." Journal of Experimental Botany, vol. 66, no. 10, 2015, pp. 2827-37.
Del Río LA. ROS and RNS in plant physiology: an overview. J Exp Bot. 2015;66(10):2827-37.
Del Río, L. A. (2015). ROS and RNS in plant physiology: an overview. Journal of Experimental Botany, 66(10), 2827-37. https://doi.org/10.1093/jxb/erv099
Del Río LA. ROS and RNS in Plant Physiology: an Overview. J Exp Bot. 2015;66(10):2827-37. PubMed PMID: 25873662.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - ROS and RNS in plant physiology: an overview. A1 - Del Río,Luis A, Y1 - 2015/04/07/ PY - 2015/4/16/entrez PY - 2015/4/16/pubmed PY - 2016/2/2/medline KW - Antioxidants KW - RNS signalling KW - ROS signalling KW - environmental stress. KW - hydrogen peroxide (H2O2) KW - nitric oxide (NO) KW - oxidative signalling KW - oxidative stress KW - reactive nitrogen species (RNS) KW - reactive oxygen species (ROS) KW - review KW - superoxide (O2 .-) SP - 2827 EP - 37 JF - Journal of experimental botany JO - J Exp Bot VL - 66 IS - 10 N2 - The production of reactive oxygen species (ROS) is the unavoidable consequence of aerobic life. ROS is a collective term that includes both oxygen radicals, like superoxide (O 2. -) and hydroxyl (·OH) radicals, and other non-radicals such as hydrogen peroxide (H2O2), singlet oxygen ((1)O2 or (1)Δg), etc. In plants, ROS are produced in different cell compartments and are oxidizing species, particularly hydroxyl radicals and singlet oxygen, that can produce serious damage in biological systems (oxidative stress). However, plant cells also have an array of antioxidants which, normally, can scavenge the excess oxidants produced and so avoid deleterious effects on the plant cell bio-molecules. The concept of 'oxidative stress' was re-evaluated in recent years and the term 'oxidative signalling' was created. This means that ROS production, apart from being a potentially harmful process, is also an important component of the signalling network that plants use for their development and for responding to environmental challenges. It is known that ROS play an important role regulating numerous biological processes such as growth, development, response to biotic and environmental stresses, and programmed cell death. The term reactive nitrogen species (RNS) includes radicals like nitric oxide (NO·) and nitric dioxide (NO2.), as well as non-radicals such as nitrous acid (HNO2) and dinitrogen tetroxide (N2O4), among others. RNS are also produced in plants although the generating systems have still not been fully characterized. Nitric oxide (NO·) has an important function as a key signalling molecule in plant growth, development, and senescence, and RNS, like ROS, also play an important role as signalling molecules in the response to environmental (abiotic) stress. Similarly, NO· is a key mediator, in co-operation with ROS, in the defence response to pathogen attacks in plants. ROS and RNS have been demonstrated to have an increasingly important role in biology and medicine. SN - 1460-2431 UR - https://www.unboundmedicine.com/medline/citation/25873662/ROS_and_RNS_in_plant_physiology:_an_overview_ DB - PRIME DP - Unbound Medicine ER -