|
| 引用本文: | 兰 可, 王任翔, 李凤英, 李光照.广西蜘蛛抱蛋的大小孢子发生和雌雄配子体发育[J].广西植物,2008,(6):755-758.[点击复制] |
| LAN Ke, WANG Ren-Xiang, LI Feng-Ying , LI Guang-Zhao.Mega-microsporogenesis and the development of female-male gametophyte in Aspidistra retusa[J].Guihaia,2008,(6):755-758.[点击复制] |
|
| |
|
|
| 本文已被：浏览 4923次 下载 1687次 |
码上扫一扫！ |
|
|
| 广西蜘蛛抱蛋的大小孢子发生和雌雄配子体发育 |
|
兰 可1, 王任翔1*, 李凤英1, 李光照2
|
|
1.广西师范大学 生命科学学院, 广西 桂林 541004;2. 广西壮族自治区
中国科学院 广西植物研究所, 广西 桂林 541006
|
|
| 摘要: |
| 对广西蜘蛛抱蛋的花做常规石蜡切片并进行观察后发现:广西蜘蛛抱蛋的花药4室,绒毡层腺质型,发育后期出现双核及多核细胞。小孢子四分体左右对称型,偶见四面体型,胞质分裂连续型。成熟花粉为2细胞。子房3室,中轴胎座。胚珠倒生,双珠被,厚珠心型。珠孔由内珠被形成。胚囊发育为变异的蓼型。 |
| 关键词: 广西蜘蛛抱蛋 大孢子 小孢子 雌配子体 雄配子体 |
| DOI： |
| 分类号:Q944.4 |
| 基金项目: |
|
| Mega-microsporogenesis and the development of female-male gametophyte in Aspidistra retusa |
|
LAN Ke1, WANG Ren-Xiang1*, LI Feng-Ying 1, LI Guang-Zhao2
|
|
1.College of Life Sciences, Guangxi Normal University, Guilin 541004, China;2.Guangxi Institute of Botany,
Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China
1.College of Life Sciences, Guangxi Normal University, Guilin 541004, China; 2.Guangxi Institute of Botany,
Guangxi Zhuang Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, China
|
| Abstract: |
| After making a routine paraffin section on the flower of Aspidistra retusa,it was found that the anther was 4-sporangiate and glandular tapetum,and became binucleate or multinucleate at the later stage of its development. The microsporocyte underwent meiosis and the cytokinesis was successive which resulted in the formation of isobilateral and occasionally tetrahedral tetrads. The mature pollen grains were 2-celled type. The ovary was trilocular with axile placentation and the ovule was anatropous,biteguminous and crassinucellate. The micropyle was formed by the inner integument. The development of embryo sac was mutant Polygonum type. |
| Key words: Aspidistra retusa megaspore microspore female gametophyte male gametophyte |
|
|
|
|
|
