Rice Heat Stress Response: Physiological Changes and Molecular Regulatory Network Research Progress

Area of Science:

• Agricultural Science
• Plant Biology
• Climate Change Adaptation

Background:

• Climate change intensifies heat stress events in rice cultivation.
• Heat stress significantly reduces rice yield and grain quality, threatening global food security.
• Developing heat-tolerant rice varieties is crucial for sustainable agriculture.

Purpose of the Study:

• To provide a comprehensive overview of heat stress effects on rice.
• To summarize physiological and metabolic changes under high temperatures.
• To discuss molecular mechanisms and breeding strategies for improving rice heat tolerance.

Main Methods:

• Review of existing literature on heat stress in rice.
• Analysis of physiological and metabolic alterations.
• Integration of findings from gene cloning, functional genomics, and breeding strategies.

Main Results:

• Heat stress impacts rice agronomic traits across all developmental stages.
• Key physiological and metabolic responses to high temperatures are identified.
• Molecular regulatory networks governing heat stress responses are elucidated.

Conclusions:

• Understanding heat tolerance mechanisms is vital for breeding thermotolerant rice.
• Advanced breeding strategies offer practical approaches to enhance rice heat tolerance.
• Further research is needed to address knowledge gaps in rice heat response.