Chin J Plant Ecol ›› 2024, Vol. 48 ›› Issue (2): 135-146.DOI: 10.17521/cjpe.2023.0060  cstr: 32100.14.cjpe.2023.0060

Special Issue: 全球变化与生态系统

• Review •     Next Articles

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

DU Xu-Long1,2, HUANG Jin-Xue2, YANG Zhi-Jie1,2,3, XIONG De-Cheng1,2,3,*()   

  1. 1Institute of Geography, Fujian Normal University, Fuzhou 350007, China
    2School of Geographical Sciences, Key Laboratory for Humid Subtropical Eco-geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, China
    3Fujian Sanming Forest Ecosystem National Observation and Research Station, Sanming, Fujian 365002, China
  • Received:2023-02-28 Accepted:2023-10-09 Online:2024-02-28 Published:2023-10-12
  • Contact: * (xdc104@163.com)
  • Supported by:
    National Natural Science Foundation of China(32071743);Public Welfare Projects of Science and Technology Department of Fujian Province(2022R1002004);Natural Science Foundation of Fujian Province(2021J01176)

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