title: [Study on Salt Tolerance of Echinacea purpurea].
abstract: OBJECTIVE
  To explore the salt tolerance of Echiancea purpurea and its mechanism.
  
  
  METHODS
  Echiancea purpurea was used as test material in this study and six salinity levels (0, 30, 60, 90, 120 and 150 mmol/L NaCl) were set. Effects on seed germination and salt tolerance relevant physiological and biochemical indexes of Echiancea purpurea were studied.
  
  
  RESULTS
  Salt stress suppressed the germination of Echiancea purpurea seeds, induced osmotic adjustment substances proline, soluble sugar and K+ to increase, and activities of POD and SOD to rise, and meanwhile resulted in accumulation of Na+ and decrease of K+/Na+.
  
  
  CONCLUSIONS
  Echiancea purpurea can tolerant salt stress to a certain degree, but in case of high salt concentrations, severe salt injury would remarkably suppress the growth of Echinacea purpurea.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.forename: Xiao-dong
authors.initials: XD
authors.lastname: Jia
authors.forename: Yong-zhi
authors.initials: YZ
authors.lastname: Liu
authors.forename: Ji-ping
authors.initials: JP
authors.lastname: Xuan
authors.forename: Zhong-ren
authors.initials: ZR
authors.lastname: Guo
authors.forename: Yu-shan
authors.initials: YS
authors.lastname: Qiao
mesh_terms: D020900:Echinacea / Q000502:physiology*; D010946:Plants, Medicinal / Q000502:physiology; D055051:Salt-Tolerant Plants / Q000502:physiology*; D012965:Sodium Chloride / Q000737:chemistry; D013312:Stress, Physiological
chemical_list: D012965:Sodium Chloride