Effects of extracellular calmodulin on pollen germination and tube growth

被引：4
|
作者：
Ma, LG [1 ]
Xu, XD [1 ]
Cui, SJ [1 ]
Sun, DY [1 ]
机构：
[1] Hebei Normal Univ, Mol Cell Biol Lab, Shijiazhuang 050016, Peoples R China
来源：
CHINESE SCIENCE BULLETIN | 1998年 / 43卷 / 02期
基金：
中国国家自然科学基金;
关键词：
extracellular calmodulin; Forsythia suspensa; pollen germination; pollen tube growth;
D O I：
10.1007/BF02883929
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The effects of calmodulin (CaM) antagonist W7-agarose, anti-CaM serum and exogenous Purified CaM on pollen germination and tube growth of Forsythia suspensa were studied. The pollen germination and tube growth were inhibited or completely stopped by CaM antagonist W7-agarose. The addition of exogenous purified CaM stimulated pollen germination and tube growth, whereas the same amount of bovine serum albumin (BSA) had no effect. The inhibitory effects caused by W7-agarose and anti-CaM serum could be reversed completely by the addition of exogenous purified CaM. The tube growth of germinated pollen was also inhibited or completely stopped by W7-agarose. The results suggest that Endogenous extracellular CaM initiates pollen germination and tube growth, whereas exogenous CaM enhances the above processes.
引用
收藏
页码：143 / 146
页数：4
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