Cytoskeletal organization and pollen tube growth

被引：92

作者：

Cai, G

Moscatelli, A

Cresti, M

机构：

[1] Dept. of Environmental Biology, University of Siena, 53100 Siena

来源：

TRENDS IN PLANT SCIENCE | 1997年 / 2卷 / 03期

关键词：

D O I：

10.1016/S1360-1385(96)10057-1

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The growth of pollen tubes is characterized by intense secretory activity in the tip region. This process of vesicle-mediated secretion and tip growth is strongly influenced by calcium gradients. The cytoskeletal apparatus is also critically involved, as it is required for the translocation of organelles along the tube (a prerequisite for tube extension) and for the transport of the generative/sperm cells, The microtubules and actin filaments probably have distinct functions that relate to different, but related, cytological events within the pollen tubes. Both systems, as well as cytoskeleton-based motor proteins, are necessary for the proper development and growth of the pollen tubes. Different approaches have allowed the roles of several cytoskeletal components to be deciphered, and it is now possible to speculate how they might interact.

引用

页码：86 / 91

页数：6

共 49 条

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