Effects of warming on oxidative damage and defense characteristics and their correlation in leaf and fine root of plants: a review

doi:10.17521/cjpe.2023.0060

Abstract

Abstract:

The leaves and fine roots are the most sensitive and active parts of the above- and below-ground parts of plants, respectively, and they play a very important role in the carbon cycle of the forest ecosystem. The physiological and metabolic characteristics of leaves and fine roots, and their interrelated changes not only reflect the growth status of plants under the background of global warming, but also reveal the response characteristics and adaptation strategies of plants to environmental stress. Their changes have become one of the hotspots and difficulties in the field of global change. A large number of experiments has been carried out domestically and abroad to investigate the change characteristics and response mechanisms in physiological metabolism and of plant leaves and fine roots under global warming conditions from the perspectives of oxidative damage, antioxidant defense and metabolites. At present, some studies found that atmospheric warming will promote the accumulation of active oxygen species in leaves and caused oxidative damage to leaves, while the damage to fine roots is not obvious. But some other studies also showed that fine roots are more affected by soil warming. In summary, how plant leaves and fine roots will respond to climate warming by adjusting their physiological and metabolic characteristics and the interaction between organs and the internal mechanism of these responses have not been fully studied. So, this study systematically reviewed the research progress on the oxidative damage and antioxidant defense characteristics of plant leaves and fine roots under the background of global warming and their interrelated changes, with a view to providing a reference for the research on the response and adaptation mechanism of plants to global warming, and suggest that the following aspects should be carried out in the future: (1) more study on oxidative damage and defense characteristics of plants by warming at population and community scales; (2) combined above- and below-ground phenological characteristics to study the effect of warming on oxidative damage and defense characteristics of plants; (3) deeply analysis on the response of plant oxidative damage and defense characteristics to warming from the correlation between more plant physiological indicators; (4) more concern on the correlation between above- and below-ground of plants, and their seasonal differences.

Key words: global warming, leaf, fine root, oxidative damage, antioxidant defense, correlation, impact mechanism

DU Xu-Long, HUANG Jin-Xue, YANG Zhi-Jie, XIONG De-Cheng. Effects of warming on oxidative damage and defense characteristics and their correlation in leaf and fine root of plants: a review[J]. Chin J Plant Ecol, 2024, 48(2): 135-146.

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References 77

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研究对象 Research object	活性氧类物质 Active oxygen species	参考文献 Reference
云杉 Picea sp.	增加 Increase	Han et al., 2009
杉木 Cunninghamia lanceolata	增加 Increase	Zhang et al., 2019
大豆 Glycine max	增加 Increase	Imran et al., 2021
水稻 Oryza sativa	增加 Increase	Taratima et al., 2022
麻风树 Jatropha curcas	增加 Increase	Sliva et al., 2018
冬小麦 Triticum aestivum	减少 Decrease	Fan et al., 2017

研究对象 Research object	活性氧类物质 Active oxygen species	参考文献 Reference
云杉 Picea sp.	增加 Increase	Han et al., 2009
杉木 Cunninghamia lanceolata	增加 Increase	Zhang et al., 2019
大豆 Glycine max	增加 Increase	Imran et al., 2021
水稻 Oryza sativa	增加 Increase	Taratima et al., 2022
麻风树 Jatropha curcas	增加 Increase	Sliva et al., 2018
冬小麦 Triticum aestivum	减少 Decrease	Fan et al., 2017

类型 Type	组成 Composition	参考文献 Reference
抗氧化酶系统 Antioxidant enzyme system	超氧化物歧化酶、过氧化氢酶、抗坏血酸过氧化物酶、过氧化物酶等 Superoxide dismutase, catalase, ascorbic acid peroxidase, peroxidase, etc.	Rivas-Ubach et al., 2014; Fei et al., 2020
非酶抗氧化系统 Non-enzyme antioxidant system	酚类、黄酮类化合物、有机酸、氨基酸和脂质等小分子抗氧化性代谢物 Phenols, flavonoids, organic acids, amino acids, lipids and other small molecular antioxidant metabolites	Suseela et al., 2015; Zhu et al., 2020

类型 Type	组成 Composition	参考文献 Reference
抗氧化酶系统 Antioxidant enzyme system	超氧化物歧化酶、过氧化氢酶、抗坏血酸过氧化物酶、过氧化物酶等 Superoxide dismutase, catalase, ascorbic acid peroxidase, peroxidase, etc.	Rivas-Ubach et al., 2014; Fei et al., 2020
非酶抗氧化系统 Non-enzyme antioxidant system	酚类、黄酮类化合物、有机酸、氨基酸和脂质等小分子抗氧化性代谢物 Phenols, flavonoids, organic acids, amino acids, lipids and other small molecular antioxidant metabolites	Suseela et al., 2015; Zhu et al., 2020