高温胁迫导致水稻光温敏核不育系开颖与雌蕊受精障碍的研究进展  

Research Advances on High Temperature Induced-Impairment in Spikelet-Opening and Pistil-Fertilization of Photo-Thermo-Sensitive Genic Male Sterile Rice Lines

作　　者：周宇娇 张伟杨 杨建昌[1,2] Zhou Yujiao;Zhang Weiyang;Yang Jianchang(Jiangsu Key Laboratory of Crop Genetics and Physiology/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Agricultural College of Yangzhou University,Yangzhou 225009,Jiangsu,China;Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops/Yangzhou University,Yangzhou 225009,Jiangsu,China)

机构地区：[1]江苏省作物遗传生理重点实验室/江苏省作物栽培生理重点实验室/扬州大学农学院,江苏扬州225009 [2]江苏省粮食作物现代产业技术协同创新中心/扬州大学,江苏扬州225009

出　　处：《作物杂志》2022年第4期1-8,共8页Crops

基　　金：国家自然科学基金(31771710,31901445)。

摘　　要：水稻光温敏核不育系开颖与雌蕊受精障碍是高温胁迫导致其制种产量降低的主要原因,阐明其机理并探究提高水稻光温敏核不育系耐热性的途径,对于减轻其高温伤害具有重要意义。本文综述了高温胁迫对水稻光温敏核不育系开颖、雌蕊受精以及影响抽穗的生理机制研究进展;并综述了激素与渗透调节和抗氧化系统的内在关系及其对高温胁迫下水稻光温敏核不育系开颖与雌蕊受精障碍的调控作用,展望了进一步探究高温胁迫导致水稻光温敏核不育系开颖与雌蕊受精障碍机理的研究方向,为提高两系杂交稻制种产量和指导水稻抗高温育种和栽培提供一定的理论依据。The reduction in seed yield of the“two-line-method”hybrid rice under high temperature(HT)stress during anthesis is attributable mainly to the impairment in spikelet-opening and/or pistil-fertilization.To reduce the detrimental impacts of HT stress on the photo-thermo-sensitive genic male sterile(PTSGMS)rice lines,its mechanism should be understood and methods to improve plant thermo-tolerance should be delved.In the publication,the physiological mechanisms of damage to the spikelet-opening,pistil-fertilization,and heading of the PTSGMS rice lines under HT stress were studied.In addition,summarized the intrinsic relationships between hormones and osmotic regulation,antioxidant system,as well as the regulation of the impairment in spikeletopening and pistil-fertilization of the PTSGMS rice lines under HT stress.The research direction of molecular mechanism of the impairment in spikelet-opening and pistil-fertilization of the PTSGMS rice lines under HT stress is also prospected in this paper.The review may provide insights for improving seed yield of two-line hybrid rice and guiding cultivation and breeding of thermo-tolerance rice.

关 键 词：水稻 光温敏核不育系 高温 开颖 雌蕊受精 

分 类 号：S511[农业科学—作物学]