石斛属

The orchid groups with important ornamental value include the genera Phalaenopsis, Paphiopedilum, Cymbidium, Dendrobium, Vanda, Phaius, Calanthe, Aerdies, Pleione Holcoglossum, Cypripedium, Cypripedium.

其中的构兰属、兜兰属、兰属、石斛属、万带兰属、鹤顶兰属、虾脊兰属、指甲兰属、独蒜兰属、槽舌兰属，蝴蝶兰属等有重要的观赏价值。

The major results obtained are: PCR-RFLP method is suitable for molecular identification of Shihu; 205 compounds were isolated from 10 species of Dendrobium, including 21 new compounds, and 28 compounds isolated from genus Dendrobium for the first time. Each of the extracts and compounds were screened for anticoagulant and antitumour activities separately. The results indicated that the ethyl acetate extract from Dendrobium chrysanthun has significant anticoagulant function; the antitumour function of the 4 bibenzyl components from Dendrobium chrysotoxum is stronger than that of phenanthrene, of which the erianin has significant anti-angiogenic effect both in vivo and in vitro; components with moderate or stronger antitumour activities were found in the extracts of D. thyrsiflorum, D. chrysanthun and D. trigonopus; quality standard for 5 species of Dendrobium was drawn up use active or indicative components as control.

重要研究结果有：经方法学研究，认为PCR-RFLP法适于作为石斛属药材分子标记鉴定方法；对10种石斛进行化学成分分离鉴定，共分得205个化合物，其中新化合物21个，首次从石斛属分得的28个；对提取物和各单体化合物分别作抗凝血、抗肿瘤等活性筛选，结果说明束花石斛乙酸乙酯部位有显著的抗凝血作用，鼓槌石斛的4个联苄类成分抗肿瘤作用强于菲类，联苄类毛兰素在体内外有显著抗血管生成活性，球花石斛、束花石斛及翅梗石斛均筛到中等或较强抗癌活性的成分；选择有活性或指标性成分作对照品，对5种石斛草拟了质量标准。

The main genera are Calanthe,Liparis, Habenaria,Dendrobium, Cymbidium and Bulbophyllum. Among them,there are 2 cosmopolitan genera,2 tropic genera and 2 tropic-subtropics genera. Geographical elements of this orchid flora are complex and varied.

主要属为虾脊兰属、羊耳蒜属、玉凤花属、石斛属、兰属、石豆兰属，其中2属为世界分布属，2属为热带分布属，2属为热带—亚热带分布属。

Analysis of genetic diversity and affinity relationships among 13 species of Dendrobium Sw.

利用RAPD分析13种石斛属植物的遗传多样性和亲缘关系。

Dendrobium is a large genus of tropical orchids that consists of about 1000 species .

石斛属为热带兰科植物中种类最多的一种植物，全世界约有1000种。

It is concluded that RAPD markers can be used on the studies of genetic relationships and classification of species of Dendrobium Sw.sensitively.

结论该标记技术对石斛属植物的遗传多样性和分类研究是可行的。

This paper describes the optimized method for the total DNA isolation of Dendrobium species.

本文对石斛属植物基因组DNA的提取方法进行了优化，建立了适合石斛属PCR扩增所需的基因组DNA提取方法。

But when we examined the structure of cultivar of D. huoshanense, endomycorhiza was founded unexpectedly. And in the wild type of D. huoshanense, fungi was also founded in its stems and leaves. So the author thought that endomycorhiza is not only located in the roots of Dendiobium plants, but also exists in other organs of plants, including stems, leaves. As plant produces seeds, mycorhiza could enter into the cells of seeds. When mature seeds germinate in media, the endomycorhiza enter into the roots of cultivar.

石斛属植物与真菌共生，根为菌根，作者在研究霍山石斛组织培养型结构时发现，组织培养苗的根部也分布有真菌，而且在野生霍山石斛的茎、叶中发现有真菌，作者因而指出，真菌并不是完全分布在根部，而是遍布于整个植物体，推测植物形成种子时，真菌进入种子，所以在组织培养时，真菌随着种子的萌发，进入植物体根部。

You have the wild plant to have 1,452 kinds, in which area national kind of protection to have the metasequoia, two kind ofprotections has the gingko and so on 4 kinds, three kind ofprotections 8 kinds, have the species which 石斛 and so on 1Ospecies is borders on exterminates, 6 kinds for the Chinese uniquekind, the Huangshan Mountain unique 2 kinds, the initial contact orthe plant which to Huangshan Mountain names have 28 kinds, You Yimingthe tea "the Huangshan Mountain Mao fong", the famous medicine "theHuangshan Mountain ganoderma lucidum" are renowned at home and abroad.

你有野生植物有1452种，其中属国家一类保护的有水杉，二类保护的有银杏等4种，三类保护的8种，有石斛等1O个物种属濒临灭绝的物种，6种为中国特有种，黄山特有2种，首次发现或以黄山命名的植物有28种，尤以名茶&黄山毛峰&、名药&黄山灵芝&驰名中外。

In this study, the genetic variations of 14 species of Cymbidium were revealed by using RAPD and AFLP markers and the genetic variations of 13 species of Dendrobium were revealed by using AFLP markers.

本文采用RAPD技术和AFLP技术对兰属植物14种材料以及采用AFLP技术对石斛属13种材料进行了遗传多样性检测。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。