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作 者 ：孟颖;王秀华*;王丛红

期 刊 ：植物研究 2009年 29卷 6期 页码：681-684

关键词：核桃楸；小孢子发生；雄配子体；发育；

Keywords:Juglans mandshurica Maxim., microsporogenesis, male gametophyte, development,

摘 要 ：通过石蜡制片技术对小孢子的发生和雄配子体发育过程进行了系统的研究。结果表明：花药含有4个花粉囊；花粉囊壁包括表皮、纤维层、中层、绒毡层；花药壁发育属基本型，腺质绒毡层，中层和绒毡层在花粉发育过程中逐渐解体，成熟的花粉囊只保留表皮和纤维层。小孢子母细胞减数分裂中，细胞质分裂是同时型。四分体排列方式为四面体型，四分体解体产生单核花粉粒，成熟花粉为2-细胞型。

Abstract:Microsporogenesis and development of male gametophytes were systenatically studied. Microspore mother cells (pollen mother cells) possess four pollen sacs, the pollen sac includes the epidermis,fibrous layer,middle layer and tapetum.Anther wall development belongs to the basical type.The tapetum belongs to galandular type. Pollen grains middle layer and tapetum dispear gradually during the pollen development.The cytokinesis after meiotic division of PMCs is simultaneous and the microspore arrangement in the tetrad is tetrahedral.Later,terads are divided into to 4 single-cell.Mature pollen is 2-cells type.

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