Response Mechanism and Defense Measures Against High Temperature Adversity in Rice:A Review
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.
ricehigh temperature adversityproduction indexesphysiological characteristicsmolecular regulation of genesdefense measures
万方数据
维普
