title: Four new bisabolane-type sesquiterpenes from Ligularia lankongensis.
abstract: The chemical constituents of the roots of two Ligularia lankongensis samples collected in Yunnan and Sichuan Provinces, China, were investigated, together with the DNA sequence of the atpB-rbcL and ITS regions. Four new highly oxygenated bisabolane-type sesquiterpenes (1 - 4) were obtained. Intraspecific diversity in the DNA sequence was found to be limited.
authors.affiliation: RIKEN Advanced Science Institute, Hirosawa, Wako 351-0198, Japan. hhirota@riken.jp
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Hirota
authors.forename: Yurie
authors.initials: Y
authors.lastname: Horiguchi
authors.forename: Satoru
authors.initials: S
authors.lastname: Kawaii
authors.forename: Chiaki
authors.initials: C
authors.lastname: Kuroda
authors.forename: Ryo
authors.initials: R
authors.lastname: Hanai
authors.forename: Xun
authors.initials: X
authors.lastname: Gong
mesh_terms: D019659:Asteraceae / Q000737:chemistry* / Q000235:genetics; D002681:China; D005843:Geography; D015394:Molecular Structure; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012717:Sesquiterpenes