| 短葶飞蓬减数分裂、雄配子体发育过程及其对应的花部形态特征 |
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| 引用本文： | 董志渊,王馨,李林玉,杨斌,严世武,杨丽英,李绍平.短葶飞蓬减数分裂、雄配子体发育过程及其对应的花部形态特征[J].热带亚热带植物学报,2010,18(6):685-688. |
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| 作者姓名： | 董志渊 王馨 李林玉 杨斌 严世武 杨丽英 李绍平 |
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| 作者单位： | 云南省农业科学院药用植物研究所,昆明,650223 |
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| 基金项目： | 云南省重点产业创新工程项目（2008IF024） |
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| 摘 要： | 运用压片-透明法对短葶飞蓬(Erigeron breviscapus)小孢子母细胞减数分裂、雄配子体的发育过程进行了观察，并探讨了它们与花部形态特征的关系。结果表明，短葶飞蓬小孢子母细胞减数分裂的胞质分裂为同时型，四分体主要为四面体型，成熟花粉为3-细胞型；花序和花蕾形态变化与减数分裂、雄配子体的发育时期具有一定相关性，其中花蕾的长度可有效确定该花蕾中减数分裂与雄配子体发育时期。
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| 关 键 词： | 短葶飞蓬 减数分裂 雄配子体发育 花部形态特征 |
| 收稿时间： | 2009/12/2 0:00:00 |
| 修稿时间： | 9/6/2010 12:00:00 AM |
Meiosis, Male Gametophyte Development and Flower Morphology of Erigeron breviscapus |
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| DONG Zhi-yuan,WANG Xing,LI Lin-yu,YANG Bin,YAN Shi-wu,YANG Li-yin and LI Shao-ping.Meiosis, Male Gametophyte Development and Flower Morphology of Erigeron breviscapus[J].Journal of Tropical and Subtropical Botany,2010,18(6):685-688. |
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| Authors: | DONG Zhi-yuan WANG Xing LI Lin-yu YANG Bin YAN Shi-wu YANG Li-yin and LI Shao-ping |
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| Institution: | Institute of Medical Plant, Yunnan Academy of Agricultural Sciences,Institute of Medical Plant, Yunnan Academy of Agricultural Sciences,Institute of Medical Plant, Yunnan Academy of Agricultural Sciences,Institute of Medical Plant, Yunnan Academy of Agricultural Sciences,Institute of Medical Plant, Yunnan Academy of Agricultural Sciences,Institute of Medical Plant, Yunnan Academy of Agricultural Sciences,Institute of Medical Plant, Yunnan Academy of Agricultural Sciences |
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| Abstract: | The meiosis and male gametophyte development of Erigeron breviscapus were observed by using squash and transparent preparation technology, and the relationship between the development stage and the flower morphological characteristics was discussed. The results showed that cytokinesis of microspore mother cells in meiosis was simultaneous type, tetrad was tetrahedral, and mature pollen grain was 3-celled. The morphological characteristics of inflorescence and bud had relation to process of meiosis and male gamete development. The stages of meiosis and male gametophyte development could be distinguished according to the length of bud. |
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| Keywords: | Erigeron breviscapus Meiosis Male gametophyte development Flower morphological charactistics |
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