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| 香鳞毛蕨配子体发育的研究 | |
| 引用本文： | 黄庆阳,肖自添,常缨. 香鳞毛蕨配子体发育的研究[J]. 植物研究, 2006, 26(3): 266-269 |
| 作者姓名： | 黄庆阳 肖自添 常缨 |
| 作者单位： | 1. 东北农业大学生命科学学院,哈尔滨,150030 2. 东北林业大学博士后流动站,黑龙江省农业科学院博士后工作站,哈尔滨,150040 |
| 基金项目： | 黑龙江省博士后科研启动基金;东北农业大学校科研和校改项目;黑龙江省农业科学院博士后启动基金 |
| 摘 要： | 研究了香鳞毛蕨(Dryopteris fragrans (L.)Schott)配子体的发育过程。结果发现孢子极面观为椭圆形，赤道面观为半圆形，单裂缝。孢子萌发为书带蕨型；丝状体2～9个细胞长，有明显顶端细胞，可形成多细胞的广阔板状片状体；片状体顶端分生组织继续分裂，发育为幼原叶体；原叶体发育为三叉蕨型；毛状体数量丰富，均为单细胞；颈卵器和精子器几乎同时形成，较小；成熟原叶体倒卵状心脏形。该配子体表现为进化性状。 |
| 关 键 词： | 香鳞毛蕨；原叶体；配子体发育 |
| 收稿时间： | 2005-12-29 |
| 修稿时间： | 2005-12-29 |
The development of gametophytes of Dryopteris fragrans |
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| HUANG Qing-Yang,XIAO Zi-Tian,CHANG Ying. The development of gametophytes of Dryopteris fragrans[J]. Bulletin of Botanical Research, 2006, 26(3): 266-269 | |
| Authors: | HUANG Qing-Yang XIAO Zi-Tian CHANG Ying |
| Affiliation: | 1. College of life Science,Northeast Agricultural University,Harbin 150030;2. The Postdoctoral Research Centre of Northeast Forestry University, The Postdoctoral Workstation of Heilongjiang Acad- emy of Agricultural Sciences, Harbin 150040 |
| Abstract: | The development of gametophytes of Dryopteris fragrans (L.) Schott was studied. The results showed that the spores are monolete,elliotical in polar view and semicircle in equatoral view. The germination is of the Vittara-type, and the germ filament developes 2～9 cells long. The apical cells are obvious. Prothallial plate is multicellular plate. Apical meristem still divide and develop to young prothallus. The prothallus is of the Aspidium-type. Quantity of hair is large,and each is unicellular. The antheridia and archegonia are smaller, and seem to develop at the same time. The adult prothallus are cordate-thalloid. It appears that the gametophytes of Dryopterisfragrans (L.)Schott possess some evolving characteristics of the fern. |
| Keywords: | Dryopteris fragrans(L.)Schott prothallus gametophyte development |
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