植物种子寿命的生理及分子机制研究进展  被引量:10

Advances in Studies of Physiological and Molecular Mechanisms of Plant Seed Longevity

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作  者:周文冠 孟永杰 陈锋[1] 帅海威 罗晓峰[1] 杨文钰[1] 舒凯[1] ZHOU Wenguan;MENG Yongjie;CHEN Feng;SHUAI Haiwei;LUO Xiaofeng;YANG Wenyu;SHU Kai(Key Laboratory of Crop Ecophysiology and Farming System in Southwest China, Ministry of Agriculture, Institute of Ecological Agriculture, Sichuan Agricultural University, Sichuan Engineering Research Center for Crop Strip Intercropping System, Chengdu 611130, China)

机构地区:[1]四川农业大学农学院生态农业研究所,农业部西南作物生理生态与耕作重点实验室,四川省作物带状复合种植工程技术中心,成都611130

出  处:《西北植物学报》2017年第2期408-418,共11页Acta Botanica Boreali-Occidentalia Sinica

基  金:四川省教育厅科研项目(16ZB0040);中国博士后科学基金(2014M552377;2016T90868);国家重点基础研究发展计划(973计划;2011CB100402)

摘  要:种子寿命是衡量种子质量高低的关键指标之一,直接关系到种子萌发、萌发后幼苗的生长发育以及作物产量高低。种子寿命的调控是一个复杂的生物学过程,影响种子寿命的因素包括环境因素、种子自身的结构、营养成分组成及含量以及调控种子寿命相关的关键基因。研究储藏过程中种子生理生化指标的变化,以及相应关键基因的生物学功能,掌握调控种子寿命的生理及分子机制,对于减少种子内部能量消耗,进一步延长种子寿命具有重要意义。该文综述了近年来国内外有关调控种子寿命的生理及分子机制,重点阐述了调控种子寿命的相关关键基因的研究进展,并讨论了各种外部因素对种子寿命的调控机理。As one of the key parameters of seed quality,seed longevity is directly related to seed germination,the growth and development of young seedlings,and finally the crop yield.Seed longevity is a complex biological process which regulated by numerous exogenous and endogenous factors,such as structure,nutrient composition and related key genes.Investigating the changes of physiological and biochemical indices,biological function of the related genes during seed storage process to reduce the energy consumption of seed,is great significant to further extend the longevity of seed.In this review paper,we summarized the physiological and molecular mechanisms,related key genes which have dominant roles on the changing of seed longevity.Furthermore,the regulation mechanisms of various external indices on seed longevity are discussed.Finally,we discussed probable research directions in the future.

关 键 词:种子寿命 环境胁迫 生理机制 基因调控 

分 类 号:Q945.6[生物学—植物学] Q789

 

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