Research progress on genes and regulatory mechanisms of drought resistance in rice

文献类型： 外文期刊

第一作者： Gong, Nuo

作者： Gong, Nuo;Han, Yingchun;Wang, Ziwen;Du, Yanxiu;Chen, Zhen;Sun, Hongzheng;Li, Junzhou;Wang, Ya

作者机构：

关键词： Rice; Drought resistance; Physiology; Molecular mechanism

期刊名称：PLANT SCIENCE （ 影响因子：4.1； 五年影响因子：5.1 ）

ISSN： 0168-9452

年卷期： 2025 年 360 卷

页码：

收录情况： SCI

摘要： Global warming and uneven distribution of rainfall have led to frequent drought events. Drought is a major obstacle affecting rice production; therefore, it is crucial to elucidate the drought regulatory mechanisms and breed drought-resistant and water-saving rice varieties. With the rapid development of molecular biology tools, numerous drought-related genes have been identified and cloned. At present, numerous genes related to osmotic regulation, antioxidant scavenging, phytohormones, root development, stoma and cuticle regulation have been found to improve drought resistance. This review summarizes the research progress in the cloning of drought tolerance and avoidance genes in rice, their functional characterization and validation. It reveals that current studies on drought-resistance molecular pathways and the identification of drought-resistant genes remain limited. More critically, only a few genes have been tested for drought resistance under field conditions and shown to enhance both drought resistance and yield in field environments. In the future, greater emphasis should be placed on discovering drought-resistant genes from upland rice resources. Additionally, rigorous testing and evaluation of these genes under field drought conditions are essential to assess their breeding potential, thereby advancing molecular breeding for drought resistance.

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