Reactive Oxygen Species and Antioxidant Enzymes Involved in Plant Tolerance to Stress
TLDR
The involvement of antioxidant enzymes in the tolerance of plants to various stresses is reported and the equilibrium between the production and detoxification of ROS is sustained by enzyme and nonenzymatic antioxidants.Abstract:
Plants are continuously exposed to several stress factors in field, which affect their production. These environmental adversities generally induce the accumulation of reactive oxygen species (ROS), which can cause severe oxidative damage to plants. ROS are toxic molecules found in various subcellular compartments. The equilibrium between the production and detoxification of ROS is sustained by enzymatic and nonenzymatic antioxidants. Due to advances in molecular approaches during the last decades, nowadays it is possible to develop economically important transgenic crops that have increased tolerance to stresses. This chapter discusses the oxidative stress and damage to plants. In addition, it reports the involvement of antioxidant enzymes in the tolerance of plants to various stresses.read more
Citations
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Journal ArticleDOI
Reactive Oxygen Species in Plants: From Source to Sink
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TL;DR: The current review provides an in-depth look at the fate of ROS in plants, a beneficial role in managing stress and other irregularities, and the biochemical properties and sources of ROS generation, capture systems and the influence of ROS on cell biochemistry are discussed.
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Root Damage under Alkaline Stress Is Associated with Reactive Oxygen Species Accumulation in Rice ( Oryza sativa L.)
Hui Zhang,Xiao-Long Liu,Rui-Xue Zhang,Hai-Yan Yuan,Mingming Wang,Hao-Yu Yang,Hongyuan Ma,Duo Liu,Chang-Jie Jiang,Zhengwei Liang +9 more
TL;DR: The results suggest that root cell damage, and consequently growth inhibition, of rice seedlings under alkaline stress is closely associated with ROS accumulation, and the application of procyanidins to rice seedling 24 h prior to alkaline treatment significantly alleviated alkalinity-induced root damage and promoted seedling growth inhibition.
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Phytomelatonin: An Emerging Regulator of Plant Biotic Stress Resistance.
TL;DR: How the loop, possibly located in the mitochondria and chloroplasts, maximizes disease resistance in the early pathogen ingress stage, providing on-site protection is discussed.
References
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REACTIVE OXYGEN SPECIES: Metabolism, Oxidative Stress, and Signal Transduction
Klaus Apel,Heribert Hirt +1 more
TL;DR: The mechanisms of ROS generation and removal in plants during development and under biotic and abiotic stress conditions are described and the possible functions and mechanisms for ROS sensing and signaling in plants are compared with those in animals and yeast.
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Oxidative stress, antioxidants and stress tolerance
TL;DR: Key steps of the signal transduction pathway that senses ROIs in plants have been identified and raise several intriguing questions about the relationships between ROI signaling, ROI stress and the production and scavenging ofROIs in the different cellular compartments.
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Reactive oxygen species and antioxidant machinery in abiotic stress tolerance in crop plants
TL;DR: The biochemistry of ROS and their production sites, and ROS scavenging antioxidant defense machinery are described, which protects plants against oxidative stress damages.
Journal ArticleDOI
Reactive oxygen gene network of plants
TL;DR: In Arabidopsis, a network of at least 152 genes is involved in managing the level of ROS, and this network is highly dynamic and redundant, and encodes ROS-scavenging and ROS-producing proteins.
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Reactive Oxygen Species, Oxidative Damage, and Antioxidative Defense Mechanism in Plants under Stressful Conditions
TL;DR: The generation, sites of production and role of ROS as messenger molecules as well as inducers of oxidative damage are described and the antioxidative defense mechanisms operating in the cells for scavenging of ROS overproduced under various stressful conditions of the environment are described.