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目的:调查陕西省天竺山国家森林公园药用植物自然资源的种类和数量。方法:应用样地法、线路法进行调查。结果:该公园内药用植物种类多,具有较大的药学、科研和经济价值,但多数品种蕴藏量小,有的品种已濒临灭绝。结论:应对药用植物资源进行有效的保护和合理的开发。 相似文献
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目的 对天目山自然保护区铁线莲属植物的种类、地理分布、资源特点及药用价值等进行调查研究。方法 采用野外调查、资料收集与标本鉴定相结合的方法调查该保护区铁线莲属植物资源。结果 天目山自然保护区铁线莲属植物共有22种(含4变种),可供药用20种,裂叶铁线莲为地理分布新记录种。结论 为合理开发和利用该保护区铁线莲属药用植物资源提供依据。 相似文献
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本文阐述西天目山药用植物区系的特征和药用植物的分布规律,为本区中药资源区划、中药材引种和珍稀、濒危种质资源的保护提供理论依据。 相似文献
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重楼属药用植物DNA条形码鉴定研究 总被引:44,自引:0,他引:44
为评价DNA条形码候选序列对重楼属药用植物的鉴定作用, 探讨重楼属药用植物鉴定新方法, 本研究对重楼属11个物种17份样品的psbA-trnH、rpoB、rpoC1、rbcL、matK和核ITS2序列进行PCR扩增和测序, 比较各序列扩增和测序效率、种内和种间变异, 进行barcoding gap分析, 采用BLAST1和Nearest Distance方法评价不同序列的鉴定能力。结果显示, ITS2序列在所研究的重楼属药用植物中的扩增和测序效率均为100%, 其种内种间变异、barcoding gap与其他DNA条形码候选序列相比具有明显的优势, ITS2序列在重楼属中的鉴定成功率达到100%, 而生物条形码协会 (CBOL) 植物工作组推荐的matK和rbcL序列的鉴定成功率分别为52.9% 和5.9%, 二者联合鉴定能力没有提高, 对于ITS2序列扩大至29个物种67份样品依然具有100%的鉴定成功率。实验结果表明, ITS2序列能够准确鉴定重楼属药用植物, 可以作为潜在的药用植物通用条形码序列。 相似文献
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四川忍冬属药用植物资源调查 总被引:10,自引:0,他引:10
目的调查四川忍冬属药用植物的资源状况。方法采用产地调查、标本采集、分类鉴定与文献查阅相结合的方法。结果报道了四川忍冬属药用植物12亚组25种1亚种6变种的分布、生境及药用情况。结论调查有助于四川忍冬属药用植物的资源利用和深入研究。 相似文献
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目的研究贵州省兴义市药用植物资源的种类及其分布。方法野外考察、标本采集、分类鉴定、资料考证。结果贵州省兴义市现有药用植物1461种,其中101种为贵州药用新资源、6种为贵州特有药用植物。结论兴义市药用植物资源丰富,部分种类具有较高的药用和科研价值。 相似文献
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目的为天南星族药用植物的分类和鉴定提供依据.方法以聚丙烯酰胺/凝胶等电聚焦电泳(IEF)方法对天南星族植物7种4变种1变型18个样品蛋白质进行分析.结果不同属植物的电泳谱之间有明显差异.结论利用IEF谱带差异可准确地区分犁头尖属、半夏属和天南星属. 相似文献
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This review will discuss several new drugs which were discovered and developed in recent years from traditional Chinese medicines by the Shanghai Institute of Materia Medica. Huperzine A was isolated from Huperzia serrata, a plant used for the treatment of contusion, strain, haematuria, and swelling in Chinese folk medicine. Pharmacological studies have indicated that huperzine A has powerful and reversible anticholinesterase activity. Y-maze methods have shown that huperzine A improves learning and retrieval processes, and facilitates memory retention. Huperzine A is used to treat patients with myasthenia gravis and Alzheimer's disease in China. Sarmentosin, a cyanogenic glucoside was isolated from the whole plant of Sedum sarmentosium. This plant has long been used to treat hepatitis by folk medicine. Sarmentosin significantly lowers the SGPT level of patients suffering from chronic viral hepatitis, and shows a suppressive effect on cell-mediated immune responses in mice. The root of Aconitum is well known in traditional Chinese medicine. Many Aconitum alkaloids have been isolated. Most show potent bioactivities, but with severe toxicity. Recently, some alkaloids such as 3-acetylaconitine, lappaconitine, have shown significant anesthetic activity and exhibit a higher therapeutic index. Guan-fu base A was isolated from the tuber root of Aconitum coreanum. Guan-fu base A has antiarrhythmic action and is now in clinical trials. Drug Dev. Res. 39:147–157. © 1997 Wiley-Liss, Inc. 相似文献
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南充地区半夏资源调查及与省外半夏形态特征的比较 总被引:4,自引:0,他引:4
目的 调查、比较南充地区半夏资源与省外半夏药材的形态特征,确立前者的品质,为进一步开发利用和规范化种植提供科学依据。方法 查阅文献资料与野外实地调查相结合,采集、鉴定标本,比较药材性状和数据分析。结果 查清了南充地区半夏品种、资源分布、购销情况。结论 南充地区半夏是天南星科植物半夏Pinellia ternata(Thunb.)Breit.的干燥块茎,是中国药典收载品种,资源分布广,蕴藏鞋500~1000吨,年产量100~200吨。药材呈类球形,表面白净,质地坚实,断面洁白,富含粉性,在国内外市场很有竞争力,具有很好的利用与开发价值。 相似文献
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《Pharmaceutical biology》2013,51(9):1053-1058
Context: Leishmaniasis is a widespread tropical infection caused by different species of Leishmania protozoa. There is no immunoprophylaxis (vaccination) available for Leishmania infections and conventional treatments are unsatisfactory; therefore antileishmanial drugs are urgently needed. Natural products are attractive due to their structural diversity.Objective: The present work investigated the antileishmanial action of 21 species of plants.Materials and methods: Plants were collected and their hydroalcoholic extracts were screened against promastigotes and amastigotes of L. amazonensis. Their toxicity was also assayed against peritoneal macrophages from BALB/c mice.Results: Five extracts showed significant growth inhibitory activity against promastigote form. Only the extracts from Bidens pilosa L. (Asteraceae) and Punica granatum L. (Punicaceae) inhibited the growth of intracellular amastigotes, with IC50 values of 42.6 and 69.6 µg/mL, respectively. In addition, a low toxicity on macrophage from BALB/c mice was observed.Discussion: The antiparasitic activities of B. pilosa and P. granatum have been reported against other parasitic agents and their actions can be the results of flavonoids present in the extracts.Conclusion: This study supports the importance of natural products as potential sources in the search for new antileishmanial drugs. 相似文献