| 含笑小孢子的发生、雄配子体的发育及其系统学意义 |
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| 引用本文： | 敖成齐.含笑小孢子的发生、雄配子体的发育及其系统学意义[J].广西植物,2007,27(6):836-839. |
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| 作者姓名： | 敖成齐 |
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| 作者单位： | 温州大学,生命与环境科学学院,浙江,温州,325027 |
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| 基金项目： | 温州师范学院引进人才启动基金，浙江省高校青年教师资助计划项目~~ |
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| 摘 要： | 含笑的花药具4个小孢子囊,花药壁由表皮、药室内壁、3～6层中层和绒毡层组成。绒毡层细胞在发育后期由单核分裂为2核,原位解体,为腺质型;小孢子母细胞在减数分裂过程中胞质分裂为同时型,小孢子四分体为四面体型,也有左右对称型的;成熟花粉为3细胞型。在前人对含笑小孢子发生和雄配子体发育的观察描述基础上,丰富了含笑的胚胎学资料,并对其系统学意义进行了探讨。
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| 关 键 词： | 含笑 小孢子发生 雄配子体 花药壁 系统学 |
| 文章编号： | 1000-3142（2007）06-0836-04 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006-10-05 |
Microsporogenesis, development of male
gametophyte in Michelia figo and
their systematic significance |
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| AO Cheng-Qi.Microsporogenesis, development of male
gametophyte in Michelia figo and
their systematic significance[J].Guihaia,2007,27(6):836-839. |
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| Authors: | AO Cheng-Qi |
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| Institution: | School of Life and Environmental Sciences, Wenzhou university, Wenzhou 325027, China |
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| Abstract: | For Michelia figo,there are four microsparangia in the anther whose wall is composed of epidermis,endothecium,3-6 middle layers and a tapetum.The antheral tapetum,consisting of monocyte-or binucleated cells,degenerated in situ,thus belonging to glandular type.The simultaneous cytokinesis in microspore mother cells leads to tetrahedral as well as isobilateral(bilaterally symmetrical)tetrads.The mature pollen grains are 3 celled.In the present study embryological features of M.figo were depicted further based on the former relative reports and their systematic significance was discussed. |
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| Keywords: | Michelia figo microsporogenesis male gametophyte anther wall systematics |
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