植物种子脱水耐性的研究现状分析与展望

doi:10.11924/j.issn.1000-6850.casb20190600291

摘要/Abstract

摘要：

为更好地揭示植物种子脱水耐性的差异性,挖掘与种子快速脱水相关的关键基因,笔者归纳了植物种子脱水耐性的形成假说、生理基础、脱水耐性差异等,重点分析了种子脱水耐性在全基因组、转录组、蛋白质组方面的分子机理研究,最后指出可以运用全基因组学方法系统定位世界范围内不同类型品种脱水耐性的遗传多样性和相关基因,挖掘种子脱水敏感的关键基因。

关键词: 植物种子, 脱水耐性, 生理生化, 影响因素, 分子机理

Abstract:

The objective is to clarify the differences of dehydration tolerance of plant seeds and excavate key genes of relative rapid dehydration. We summarized the formation hypothesis, physiological basis and dehydration tolerance difference in the plant seed desiccation tolerance, analyzed the molecular mechanism of seed desiccation tolerance in genome-wide, transcriptome and proteome. At last, we pointed out that the genome-wide methods could be used to locate systematically the genetic diversity and related genes of different types of varieties in the world, and to excavate key genes for seed dehydration sensitivity.

Key words: plant seed, dehydration tolerance, physiology and biochemistry, influencing factors, molecular mechanism

中图分类号:

S330.2
S326

刘忠奇, 贺记外, 张海清, 刘爱民. 植物种子脱水耐性的研究现状分析与展望[J]. 中国农学通报, 2020, 36(2): 36-41.

Liu Zhongqi, He Jiwai, Zhang Haiqing, Liu Aimin. Dehydration Tolerance of Plant Seeds: Current Research Situation and Prospects[J]. Chinese Agricultural Science Bulletin, 2020, 36(2): 36-41.

图/表 3

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种子类型	对水分的敏感性	脱水耐性强弱	成熟时含水量	成熟时代谢活动	贮藏特性	贮藏条件
正常型种子	钝感	强	较高	弱	耐贮藏	干燥与低温
顽拗型种子	敏感	弱	高	强	不耐贮藏	高含水量、适度高温
中间型种子	敏感	弱	高	较强	不耐贮藏	适量含水量、适度高温

种子类型	对水分的敏感性	脱水耐性强弱	成熟时含水量	成熟时代谢活动	贮藏特性	贮藏条件
正常型种子	钝感	强	较高	弱	耐贮藏	干燥与低温
顽拗型种子	敏感	弱	高	强	不耐贮藏	高含水量、适度高温
中间型种子	敏感	弱	高	较强	不耐贮藏	适量含水量、适度高温