植物学报 ›› 2002, Vol. 19 ›› Issue (05): 588-594.

• 研究论文 • 上一篇    下一篇

西瓜花粉壁超微结构与花粉ATP酶细胞化学定位

刘林   

  1. 1(临沂师范学院生物与农林科学系 临沂 276005)2(山东师范大学生物系 济南 250014)
  • 收稿日期:2001-11-15 修回日期:2002-04-27 出版日期:2002-09-20 发布日期:2002-09-20

Ultrastructure of Pollen Wall and Cytochemical Localization of Adenosine Triphosphatase in Pollen Grains of Citrullus lanatus

LIU Lin   

  1. 1(Department of Biology and Agroforestry Sciences, Linyi Teachers College, Linyi 276005)2(Department of Biology, Shandong Normal University, Jinan 250014)
  • Received:2001-11-15 Revised:2002-04-27 Online:2002-09-20 Published:2002-09-20

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807

被引次数

5 | 1

摘要： 研究了西瓜花粉壁超微结构以及单核花粉液泡化时期ATP酶活性超微细胞化学定位。花粉壁的外壁分为外层和内层，外层包括覆盖层、基粒棒和基足层等三层，内层只包含一层。外层电子密度相对较小，内层电子密度相对较大；外层与内层之间有缝隙。ATP酶活性反应产物主要分布在细胞质基质、质体、内质网和花粉内壁中。

Abstract: Pollen wall structure and adenosine triphosphatase in pollen grains of Citrullus lanatus was studied ultrastructurally. The exine of pollen wall is of different electron density, the nexine dense and the sexine, comprising tectum, bacules, and foot layer, relatively thin. There is some space between sexine and nexine. Product of ATPase reaction was mainly found in plastid, ERs, matrix of cytopla sm, and intine of pollen wall.

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