Achieving abiotic stress tolerance in plants through antioxidative defense mechanisms

Climate change has increased the overall impact of abiotic stress conditions such as drought, salinity, and extreme temperatures on plants. Abiotic stress adversely affects the growth, development, crop yield, and productivity of plants. When plants are subjected to various environmental stress cond...

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Vydáno v:	Frontiers in plant science Ročník 14; s. 1110622
Hlavní autoři:	Mishra, Neelam, Jiang, Chenkai, Chen, Lin, Paul, Abhirup, Chatterjee, Archita, Shen, Guoxin
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Switzerland Frontiers Media SA 02.06.2023 Frontiers Media S.A
Témata:	Abiotic stress Antioxidants Ascorbic acid Carotene Carotenoids Catalase Chloroplasts Climate change Crop yield Defense mechanisms Detoxification DNA methylation Drought Environmental conditions Environmental stress enzymatic antioxidants Enzymes Eukaryotes Free radicals Glutathione Glutathione reductase Homeostasis Hydrogen peroxide L-Ascorbate peroxidase Lipids Localization Metabolism Mitochondria non-enzymatic antioxidants Oxidation Oxygen Peroxidase Plant growth Plant Science Productivity Reactive oxygen species Reductases Salinity Signal transduction stress signaling Superoxide dismutase Tocopherol β-Carotene non-enzymatic antioxidants enzymatic antioxidants reactive oxygen species stress signaling abiotic stress
ISSN:	1664-462X, 1664-462X
On-line přístup:	Získat plný text
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Popis
Shrnutí:	Climate change has increased the overall impact of abiotic stress conditions such as drought, salinity, and extreme temperatures on plants. Abiotic stress adversely affects the growth, development, crop yield, and productivity of plants. When plants are subjected to various environmental stress conditions, the balance between the production of reactive oxygen species and its detoxification through antioxidant mechanisms is disturbed. The extent of disturbance depends on the severity, intensity, and duration of abiotic stress. The equilibrium between the production and elimination of reactive oxygen species is maintained due to both enzymatic and non-enzymatic antioxidative defense mechanisms. Non-enzymatic antioxidants include both lipid-soluble (α-tocopherol and β-carotene) and water-soluble (glutathione, ascorbate, etc.) antioxidants. Ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT), and glutathione reductase (GR) are major enzymatic antioxidants that are essential for ROS homeostasis. In this review, we intend to discuss various antioxidative defense approaches used to improve abiotic stress tolerance in plants and the mechanism of action of the genes or enzymes involved.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Review-3 content type line 23 Reviewed by: Muhammad Iqbal, Jamia Hamdard University, India; Md. Kamrul Hasan, Sylhet Agricultural University, Bangladesh; Rongbin Hu, University of California, Riverside, United States Edited by: Meng Jiang, Zhejiang University, China
ISSN:	1664-462X 1664-462X
DOI:	10.3389/fpls.2023.1110622