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| 海金沙配子体形态学特征的新观察 | |
| 引用本文： | 郭治友,刘保东,张宪春. 海金沙配子体形态学特征的新观察[J]. 植物研究, 2010, 30(1): 18-21 |
| 作者姓名： | 郭治友 刘保东 张宪春 |
| 作者单位： | 1.黔南民族师范学院生命科学系，都匀 558000；;2.哈尔滨师范大学生命与环境科学学院，哈尔滨 150025；;3.中国科学院植物研究所系统与进化植物学重点实验室，北京 100093 |
| 基金项目： | 贵州省科技厅自然科学基金资助项目(黔科合J字[2008]2102) |
| 摘 要： | 海金沙[Lygodium japonicum(Thunb)Sw.]是常见的药用蕨类之一。在人工培养条件下,利用光学显微镜详细观察其配子体发育的过程。在前人工作的基础上,补充了丝状体较短,2~3细胞长,片状体和幼原叶体发育多样,成熟原叶体心形,具单细胞或两细胞的毛状体,单细胞的假根,内含叶绿体或根尖膨大等,从海金沙配子体特征看说明其为系统进化的中间类群。孢子人工培养得到大量的海金沙幼孢子体,为保护性开发利用该资源奠定基础。 |
| 关 键 词： | 海金沙；配子体；形态学特征 |
A New Observation on Several Morphological Characteristics of Gametophyte in Lygodium japonicum |
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| GUO Zhi-You LIU Bao-Dong ZHANG Xian-Chun. A New Observation on Several Morphological Characteristics of Gametophyte in Lygodium japonicum[J]. Bulletin of Botanical Research, 2010, 30(1): 18-21 | |
| Authors: | GUO Zhi-You LIU Bao-Dong ZHANG Xian-Chun |
| Affiliation: | 1.Department of Life Science/a>;Qiannan Normal College for Nationalities/a>;Duyun 558000/a>;2.College of Life and Environment Sciences/a>;Harbin Normal University/a>;Harbin 150025/a>;3.State Key Laboratory of Systematic and Evolutionary Botany/a>;Institute of Botany/a>;the Chinese Academy of Sciences/a>;Beijing 100093 |
| Abstract: | Lygodium japonicum(Thunb) Sw. is one of normal medicinal ferns. Based on many previous works, its gametophytic development was studied by the microscope. We also supplemented the representative characteristic of it, such as Shorter filament was 2~3 cells long, Prothallial plate and young prothallus of develop types were diverse, Adult prothallus was Cordate-thalloid form, Hair made of 1 cell or 2 cells, Unicellular rhizoid was either in chloroplasts or at top enlargment and so on. These characteristics of gametophytic showed that it was a middle type on phylogeny and evolution. Many young sporophytes were obtained by artificial culture of spores, which established foundation for protective development and utilization of resource of L.japonicum. |
| Keywords: | Lygodium japonicum(Thunb) Sw. gametophyte morphological characteristic |
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