| 菠萝的大,小孢子发生和胚囊的发育 |
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| 引用本文： | 郑玉梅,王世旄.菠萝的大,小孢子发生和胚囊的发育[J].华南农业大学学报,1994,15(1):104-108. |
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| 作者姓名： | 郑玉梅 王世旄 |
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| 作者单位： | 广州华南农业大学农业生物系 |
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| 摘 要： | 菠萝花粉母细胞减数分裂时的胞质分裂为连续型，四分孢子主要呈左右对称型或交叉型，侄生胚珠、双珠被，厚珠心，胚囊母细胞产生线状四分体。合点端一个大孢子发育，为功能大孢子。胚囊发育属蓼型。
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| 关 键 词： | 大孢子 小孢子 胚囊 菠萝 |
MICROSPOROGENESIS,MEGASPOROGENESIS AND EMBRYO SAC DEVELOPMENT OF Ananas comosus(L.)Merr. |
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| Zheng Yumei,Wang Shimao.MICROSPOROGENESIS,MEGASPOROGENESIS AND EMBRYO SAC DEVELOPMENT OF Ananas comosus(L.)Merr.[J].Journal of South China Agricultural University,1994,15(1):104-108. |
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| Authors: | Zheng Yumei Wang Shimao |
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| Abstract: | This paper reports studies on the microsporogenesis,megasporogenesis and em-bryo sac development of Ananas comosus(L.)Merr.The cytokinesis of the microspore mothercell in meiosis was of the successive type.The arrangement of microspores in the tetrads waszygomorphic or decuassate.The anatropous ovule was bitegminous and crassinucellate.Themegaspore mother cell gave rise to a linear tetra.The chalazal megaspore became a func-tional megaspore.The development of the embryo sac conformed the Polygonum type. |
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| Keywords: | Megaspore Microspore Embryo sac Pineapple |
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