首页 | 本刊简介 | 编委会 | 投稿征稿 | 期刊订阅 | 下载中心 | English
 
   
  论文快速检索

请输入关键词

 

 

   
  信息公告
海外撷英栏目开通,欢迎投稿

热带亚热带植物学报网络开通

访问总次数
14697144
今日访问
329
当前在线
0人
 
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2859次   下载 2132 本文二维码信息
码上扫一扫!
分享到: 微信 更多
金银忍冬雌雄配子体发育的解剖学研究
许珂, 江莎, 古松, 陈旭辉, 王永周, 黄雅楠, 岳慧琴
作者单位
许珂, 江莎*, 古松, 陈旭辉, 王永周, 黄雅楠, 岳慧琴  
摘要:  对金银忍冬(Lonicera moackii(Rupr.)Maxim)大、小孢子的发生和雌、雄配子体的发育过程进行了研究,结果表明:(1)4月上中旬,幼嫩的花粉囊壁由表皮、纤维层、中层和绒毡层共4层细胞组成,绒毡层类型为变形绒毡层。4月15日左右小孢子母细胞进行减数分裂形成四面体型四分体,四分体时期后,部分小孢子为空瘪状态。4月23—26日即将开花时形成三细胞型的成熟花粉。(2)子房三心皮,中轴胎座,胚珠倒生,单珠被,薄珠心。4月下旬开花前发育形成成熟胚囊,胚囊的发育为蓼型,合点端具有承珠盘。研究结果表明金银忍冬雌雄配子体的发育均属正常。
关键词:  金银忍冬  大、小孢子  雌、雄配子体  解剖学
DOI:10.3969/j.issn.1005-3395.2006.6.010
分类号:
基金项目:
Anatomical Studies of Male and Female Gametophytes in Development of Lonicera maackii (Rupr.) Maxim
XU Ke, JIANG Sha, GU Song, CHEN Xu-hui, WhNG Yong-zhou, HUANG Ya-nan, YUE Hui-qin
Abstract:  The mega- and microsporogenesis and the development of male and female gametophytes in Lonicera mnackii (Rupr.) Maxim were observed. Young anther walls were composed of four layers including epidermis, fibrous layer, middle layer and amoeboid tapetum in early and middle April. Tetrahedral tetrads of microspores were present on about April 15. After the stage of tetrad, some microspores aborted and cytoplasms were absent. Three-celled mature pollen grains developed from April 23 to April 26 shortly before flowering. The ovary was trilocular with axile placentation and the ovules were anatropous, unitegrninous, and tenuinucellate. The mature embryo sacs occurred before flowering in late April, which were of the Polygonum type. Hypostase was at the chalazal end of the ovule. These results suggest that mega- and microspores and male and female gametophytes of L. maackii have normal development.
Key words:  Lonicera mnackii (Rupr.) Maxim  Mega and microspores  Male and female gametophytes  Anatomy

Copyright 2007 版权所有 中国科学院华南植物园《热带亚热带植物学报》编辑部
地址: 广州市天河区兴科路723号 中国科学院华南植物园 《热带亚热带植物学报》编辑部 邮编:510650 电话: 86 (0)20-3725 2514  传真:86 (0)20-3725 2642 E-mail: jtsb@scib.ac.cn
本系统由北京勤云科技发展有限公司设计
京ICP备09084417号-2