| 马蹄香雌蕊形态及传粉生物学研究 |
| |
| 引用本文： | 赵桦,杨培君,彭强.马蹄香雌蕊形态及传粉生物学研究[J].西北植物学报,2005,25(5):923-927. |
| |
| 作者姓名： | 赵桦 杨培君 彭强 |
| |
| 作者单位： | 陕西理工学院,陕西省资源生物重点实验室,陕西汉中,723000 |
| |
| 基金项目： | 陕西省省级重点实验室专项基金资助项目(2001-11)，陕西省自然科学研究计划项目(2003C102) |
| |
| 摘 要： | 通过对马蹄香(Asarum henryi Oliv.)雌蕊不同发育阶段的整体发育形态观察和组织切片显微结构观察，结果表明，马蹄香雌蕊心皮离生，不分化为柱头、花柱和子房三部分，开花前在心皮腹缝线上部1／2～2／3处分化出数列多细胞表皮毛，构成鸡冠状柱头，表现出原始的雌蕊结构特征。开花习性、传粉试验观察，杂交指数(OCI)及花粉-胚珠比(P／O)测定结果表明，马蹄香植物为兼性自花传粉繁育系统。
|
| 关 键 词： | 马蹄香 雌蕊形态 心皮 传粉生物学 |
| 文章编号： | 1000-4025(2005)05-0923-05 |
Biological Study of Pistil Morphology and Pollination of Asarum henryi |
| |
| ZHAO Hu,YANG Pei-jun,PENG Qiangogy,Hanzhong,Shaanxi,China.Biological Study of Pistil Morphology and Pollination of Asarum henryi[J].Acta Botanica Boreali-Occidentalia Sinica,2005,25(5):923-927. |
| |
| Authors: | ZHAO Hu YANG Pei-jun PENG Qiangogy Hanzhong Shaanxi China |
| |
| Institution: | ZHAO Hua,YANG Pei-jun,PENG Qiangogy,Hanzhong,Shaanxi 723000,China) |
| |
| Abstract: | Whole morphologies and ultra-structures of the pistils of Asarum henryi at their different developmental stages were investigated and observed by microscopic sectioning,respectively,showing that the pistils formed distinct carpel without differentiating into stigmas,styles and ovaries.Before flowering,the pistils differentiated several rows of multi-cellular epidermal hairs on upper one second to two third of carpel ventral suture,which formed cockscomb-shaped stigmas presenting structural characteristics of primitive pistils.The observations of Asarum henryi flowering habit and pollination and the measurements of Asarum henryi out-crossing index and pollen to ovule ration revealed that Asarum henryi belonged to a self-pollination-dominated reproductive system. |
| |
| Keywords: | Asarum henryi pistil morphology carpel pollination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北植物学报》浏览原始摘要信息 |
| 点击此处可从《西北植物学报》下载免费的PDF全文 |
