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黄金树大、小孢子发生及雌、雄配子体发育的细胞学观察

Published in Zhiwu yanjiu • Mar 20, 2013
Authors:
李丽萍
,
Haiyan Liu
,
陈发菊

Abstract

采用石蜡切片法对黄金树大、小孢子发生及雌、雄配子体发育的过程进行了详细的细胞学观察。结果表明:黄金树子房两室,中轴胎座,胚珠多数,倒生。单珠被,薄珠心,孢原细胞直接发育成大孢子母细胞。单孢原蓼型胚囊。黄金树雄蕊五枚,三枚退化,二枚可育。花药二室,腺质绒毡层,小孢子四分体排列方式为正四面体型。成熟花粉粒为四合花粉。

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