薯蓣属药用植物的亲缘关系研究

Studies on genetic relationship of Dioscorea

在薯蓣属Dioscorea植物形态分类学和分子分类学研究的基础上,通过对薯蓣属植物传统药效的分析,结合植物化学成分,基于化学成分对薯蓣属药用植物亲缘关系进行研究。我国薯蓣属植物约有17种植物富含甾体皂苷,均属于根状茎组Sect.Stenophora Uline,其他植物均为块茎,富含多糖、鞣质等不同化学成分,也表现出不同的药效作用。根据薯蓣属植物已知的化学成分和药效作用,结合经典形态分类学,对将薯蓣属植物归属于甾体皂苷组、多糖组、多酚组、黄独素组、薯蓣碱组、其他组。

Based on the results of the morphologic studies on genus Dioscorea,the paper summarized the entire chemical constituent that isolated from this genus and analyzed it with the methods of chemotaxonomy. The rules of the chemical constituent and pharmacodynamic effects were analyzed. Seventeen species which belong to Sect. Stenophora Uline of Dioscorea contain steroidal sapogenin.Other species with different main components such as polysaccharide and tannin have have different effects. This chemotaxonomic view point will conduce to establish a phylogeny of the genus Dioscorea.