title: Ephedra resource in Sichuan and Yunnan Provinces 2007.
abstract: Wild Ephedra plants growing near the Tibetan border of Yunnan and Sichuan Provinces and north-central Sichuan were surveyed and their DNA and ephedrine alkaloids content were analyzed. By analysis of internal transcribed spacer 1 (ITS) 1 DNA, E. likiangensis was found to be the dominant species in these regions, which clustered into 2 major groups in the phylogenic tree. Most Ephedra plants in these regions of ordinal size contained ephedrine and pseudoephedrine of more than 0.7%, the requirement for Japanese Pharmacopoeia 15th edition, suggesting that they have potential for crude drug production of Ephedra herbs.
authors.affiliation: Kanazawa University, Kakuma, Japan.
authors.forename: Ai
authors.initials: A
authors.lastname: Inoko
authors.forename: Nobuko
authors.initials: N
authors.lastname: Kakiuchi
authors.forename: Michiyo
authors.initials: M
authors.lastname: Yoshimitsu
authors.forename: Shaoqing
authors.initials: S
authors.lastname: Cai
authors.forename: Masayuki
authors.initials: M
authors.lastname: Mikage
mesh_terms: D002681:China; D018744:DNA, Plant / Q000032:analysis / Q000235:genetics; D003625:Data Collection / Q000379:methods; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D029789:Ephedra / Q000737:chemistry* / Q000235:genetics*; D020835:Medicine, Kampo; D010802:Phylogeny
chemical_list: D018744:DNA, Plant; D004365:Drugs, Chinese Herbal