| 植物游离小孢子胚胎形成机理 |
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| 引用本文： | 袁素霞,孙继峰,刘玉梅,方智远.植物游离小孢子胚胎形成机理[J].生物技术通报,2011(10). |
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| 作者姓名： | 袁素霞 孙继峰 刘玉梅 方智远 |
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| 作者单位： | 中国农业科学院蔬菜花卉研究所,北京,100081 |
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| 基金项目： | 国家自然科学基金项目(30871708); 现代农业产业技术体系建设专项资金(CARS-25); 浙江省重大科技专项农业项目(2008C1200421); 农业部园艺作物遗传改良重点开放实验室项目 |
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| 摘 要： | 植物小孢子胚胎的形成是基于具有单套染色体的小孢子在外界胁迫条件下通过脱分化和再生而形成一个完整植株的过程,是产生双单倍体的常用方式.它体现了植物细胞的全能性,为植物组织培养和胚胎发育的基础研究提供了一个独特的模式.从细胞学水平、代谢水平和分子水平3个方面综述在植物游离小孢子胚胎形成机制方面已取得的研究进展,并提出目前尚待解决的问题,以及对未来的展望,为进一步研究小孢子胚胎发生机制提供理论依据和奠定技术基础.
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| 关 键 词： | 小孢子胚胎形成 胚性小孢子 小孢子胚 基因表达 胁迫 |
Mechanisms of Microspore Embryogenesis Induction and Embryo Formation |
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| Yuan Suxia,Sun Jifeng,Liu Yumei,Fang Zhiyuan.Mechanisms of Microspore Embryogenesis Induction and Embryo Formation[J].Biotechnology Bulletin,2011(10). |
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| Authors: | Yuan Suxia Sun Jifeng Liu Yumei Fang Zhiyuan |
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| Institution: | Yuan Suxia Sun Jifeng Liu Yumei Fang Zhiyuan(Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081) |
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| Abstract: | Microspore embryogenesis is the most commonly used method to produce doubled haploids,which is based on the ability of a single haploid cell,the microspore,to de-differentiate and regenerate into a whole plant as being exposed to stresses.It is an example of totipotency in plants and provides a unique system to study fundamental aspects of plant tissue culture and embryo development.This paper reviewed the research progress in mechanisms of microspore embryogenesis induction and embryo formation,including c... |
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| Keywords: | Microspore embryogenesis Embryogenic microspore Microspore embryo Gene expression Stress |
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