title: [Investigation on biologically characterst of wild species and herbal quality of Changium smyrnioides].
abstract: OBJECTIVE
  To investigate the species resources of Changium smyrnioides.
  
  
  METHODS
  Nine habitat populations of C. smyrnioides, included with population environment, time limit, morphological characters and so on were investigated. The phylogenetic relationship of different habitat populations of C. smyrnioides was studied by isoenzyme electrophoretic analysis of the EST.
  
  
  RESULTS
  The results showed that wild resources of C. smyrnioides were endangered. Seed germinating rate of cultivated plant was significantly higher than that of wild seed, but polysaccharide content in the root of wild species was significantly higher than that of cultivated plant. There existed a geographic phylogenetic relationship among different habitat populations.
  
  
  CONCLUSIONS
  The wild C. smyrnioides resources are endangered. The wild C. smyrnioides around Nanjing city are better than the others, it could be used for the further selecting of species resources.
authors.affiliation: Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China.
authors.forename: Yan-sen
authors.initials: YS
authors.lastname: Li
authors.forename: Qiao-sheng
authors.initials: QS
authors.lastname: Guo
authors.forename: Chang-lin
authors.initials: CL
authors.lastname: Wang
authors.forename: Qing
authors.initials: Q
authors.lastname: Du
authors.forename: Min-jian
authors.initials: MJ
authors.lastname: Qin
mesh_terms: D019661:Apiaceae / Q000737:chemistry / Q000145:classification / Q000254:growth & development*; D001947:Breeding; D002681:China; D003247:Conservation of Natural Resources; D017753:Ecosystem; D004586:Electrophoresis / Q000379:methods; D004950:Esterases / Q000032:analysis; D018525:Germination; D007527:Isoenzymes / Q000032:analysis; D010598:Pharmacognosy; D010802:Phylogeny; D010940:Plant Proteins / Q000032:analysis; D018517:Plant Roots / Q000737:chemistry / Q000254:growth & development; D011134:Polysaccharides / Q000032:analysis*; D012639:Seeds / Q000737:chemistry / Q000254:growth & development
chemical_list: D007527:Isoenzymes; D010940:Plant Proteins; D011134:Polysaccharides; D004950:Esterases