Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (33): 1-10.doi: 10.11924/j.issn.1000-6850.casb2023-0801

    Next Articles

Response Mechanism and Defense Measures Against High Temperature Adversity in Rice: A Review

LI Yuan1,2(), TANG Yang1,2, WU Yunfei3, JIANG Min1,2, CHEN Jingdu1,2,4()   

  1. 1 Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou, Jiangsu 225009
    2 Jiangsu Co-innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, Jiangsu 225009
    3 College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu 225009,
    4 Yangzhou Agricultural Technology Comprehensive Service Center, Yangzhou, Jiangsu 225009
  • Received:2023-11-04 Revised:2024-02-15 Online:2024-11-23 Published:2024-11-23

Abstract:

The global warming rate and the frequency of extreme high temperature weather are continuously increasing, which could bring catastrophic impacts to rice production. To further clarify the response mechanism of rice to high temperature, this article summarized the research progress in the direction of rice heat damage from high temperature, focused on the impact of high temperature on rice production, and deeply analyzed the physiological (photosynthetic characteristics/antioxidant system) and gene molecular mechanisms of rice’s response to high temperature. We concluded that the heat tolerance characteristics of rice were formed by the interaction between varieties and the environment. Results showed that, the photosynthetic characteristics of rice were influenced by both stomatal and non-stomatal limiting factors, and the antioxidant process was achieved by enhancing the activity of antioxidant enzymes and reducing the content of malondialdehyde; rice improved plant heat adaptability by activating the expression of key genes and stimulating the transduction of heat signals within the plant; by optimizing “Before production-During production-After production” comprehensive management and monitoring system, we could explore innovative cultivation systems, and thoroughly investigate the high temperature defense mechanisms of rice. Therefore, this study aimed to clarify the physiological and molecular mechanisms of rice in response to high temperature stress, providing a scientific reference for future heat-tolerant rice breeding work and improving rice sustainable production.

Key words: rice, high temperature adversity, production indexes, physiological characteristics, molecular regulation of genes, defense measures