摘要
High temperature stress is one of major abiotic stresses limiting rice productivity,especially at the flowering period.Understanding mechanisms of rice adaptation to heat stress would facilitate the development of heat-tolerance cultivars for improving yield in a warmer world.Rice heat stress responses are very complex.Interactions between structure,function and the environment need to be investigated at the apparent and molecular levels in order to obtain a full picture.In this review,we summarized the current knowledge on the morphology and genetic basis of heat tolerance in reproductive tissues of rice at the flowering time,and some morphologic characters for increasing thermotolerance in rice via conventional breeding are outlined.
高温是限制水稻产量的主要非生物胁迫之一,尤其是对水稻开花期影响。随着全球气候变暖,了解水稻适应高温环境的机理对培育耐热品种将非常有帮助。水稻对高温的反应非常复杂,需对水稻各结构,功能和环境之间在表型,分子水平上的作用进行研究,才能获得高温反应全图。本文综述了水稻耐热性的形态和遗传基础的研究进展,以及总结了水稻耐热育种上有所应用的耐热水稻花器官的形态学特征。
基金
Supported by the National Key Technology Research and Development Program(2012BAD20B00)~~
