title: [Investigation on quality difference between Cordyceps of Sichuan and those of Xizang].
abstract: OBJECTIVE
  The quality difference among the Cordyceps specimens which grew in various micro-ecological environment and between those from Kangding of sichuan and those from Naqu of Xizang was compared and analyzed.
  
  
  METHODS
  The specimens from various spots in field were collected, their appearance properties were analyzed, content of adenosine was assayed, and their difference on ecological hereditary variation was discussed.
  
  
  RESULTS
  The biggest values of quality difference among the Cordyceps specimens from various micro-ecological environment can surpass that between specimen of Sichuan and specimen of Xizang.
  
  
  CONCLUSIONS
  The effect of the micro-ecological environment on the quality of the Cordyceps might exceed that of extensive climates and region differences at times.
authors.affiliation: Chongqing Academy of Chinese Materia Medica, Chongqing 400065, China.
authors.forename: Z J
authors.initials: ZJ
authors.lastname: Cai
authors.forename: D H
authors.initials: DH
authors.lastname: Yin
authors.forename: L
authors.initials: L
authors.lastname: Li
authors.forename: W J
authors.initials: WJ
authors.lastname: Xia
mesh_terms: D000241:Adenosine / Q000032:analysis*; D000818:Animals; D002681:China; D002980:Climate; D032661:Cordyceps / Q000737:chemistry*; D004463:Ecology; D007915:Lepidoptera / Q000033:anatomy & histology* / Q000737:chemistry; D008419:Materia Medica / Q000737:chemistry*; D011786:Quality Control; D018609:Tibet
chemical_list: D008419:Materia Medica; D000241:Adenosine