Microsporogenesis,development of male gametophyte in Michelia figo and their systematic significance
Microsporogenesis,development of male gametophyte in Michelia figo and their systematic significance
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发表时间：
2007
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通讯作者：
A. Cheng
中科院分区：
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作者：
A. Cheng
含笑花药内有4个小孢子囊，其壁由表皮、内膜、3-6层中层和绒毡层组成。花药绒毡层由单核或双核细胞组成，原位退化，属于腺型。小孢子母细胞同时进行胞质分裂，形成四面体和四面体。 等侧（双侧对称）四分体。成熟花粉粒为三细胞。本研究在前人相关报道的基础上进一步描述了M.figo的胚胎学特征，并讨论了其系统意义。
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.