DEVELOPMENT OF STRUCTURE-LESS POLLEN WALL IN CERATOPHYLLUM-DEMERSUM L (CERATOPHYLLACEAE)

被引：34

作者：

TAKAHASHI, M

机构：

[1] Department of Biology, Faculty of Education, Kagawa University, Takamatsu

来源：

JOURNAL OF PLANT RESEARCH | 1995年 / 108卷 / 1090期

关键词：

CERATOPHYLLACEAE; CERATOPHYLLUM; DEVELOPMENT; POLLEN;

D O I：

10.1007/BF02344345

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Developmental process of structure-less exine is studied in a hydrophilous plant, Ceratophyllom demersum L., with electron microscopy. The plant shows a characteristic feature in tetrad formation, A callose wall is not synthesized and exine initiation does not occur during the tetrad stage. After release of microspores, a trilaminar layer with two electron-dense lines is formed in the surface of each microspore. The trilaminar layer develops to a thin structure-less exine that is considered to consist;of only an endexine. The unusual exine would be an adaptive feature for submersed pollination in fresh water.

引用

页码：205 / 208

页数：4

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