我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

中国鹅掌楸雄性生殖单位的二维结构(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1995年01期
Page:
15-20
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
DIMENSIONAL FEATURES OF MALE GERM UNIT IN LIRIODENDRON CHINENSE SARG.
Article ID:
1000-2006(1995)01-0015-06
Author(s):
Zhou Jian; Fan Ruwen
College of Forest Resources and Environment Nanjing Forestry University Nanjing 210037
Keywords:
:Liriodendron chinenseMale germ unitSperm heteromorphism
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1995.01.003
Document Code:
A
Abstract:
:The pollen of Liriodendron chinense is of two-cell type.The six pollen tubes located at the stigma chord of alien-L.tulipifera wer observed with electron microscope.When the pollen tube extended to the stigma chord,and the length of the pollen tube was 4-10 times as the diameter of pollen, the generative cell split into two sperms.The two sperms of a given pollen tube were different in size and morphology,namely sperm heteromorphism.Sperm-to-sperm connection was near the pollen tube tip.The sperms were also encompassed by the inner vegetative cell plasma membrane,and one sperm(Svn)was consistently associated with the vegetative nucleus through a sperm cell extension that embraces the vegetative nucleus and was partially surrounded by lobes of the vegetative nucleus.The sperm cell-vegetative nucleus packaging is called Male Germ Unit.When pollen tube degenerated,the sperm cell did not extend and the packaging of sperm cell-vegetative nucleus did not result.

References

-

Last Update: 1900-01-01