title: [Analysis of biochemical indices and efficient ingredients in autotetraploid of Dioscorea zingibiernsis].
abstract: OBJECTIVE
  To improve the yield and quality of Dioscrea zingibiernsis.
  
  
  METHODS
  The Biochemical indices and the diosgenin's content were analysed in the autotetraploid lines.
  
  
  RESULTS
  The results showed that the activities of APX, SOD and POD in most of autotetraploid lines were higher than that in diploid line or close to it, there was also difference between autotetraploid lines and control lines in the SDS-PAGE of soluble proteins. The content of diosgenin in most autotetraploid plantlets were higher than that in the control.
  
  
  CONCLUSIONS
  There were difference between autotetraploid and control lines in the content of diosgenin and Biochemical indices, therefore, inducing autotetraploid could be an effective way to breeding the superior varieties.
authors.affiliation: Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China. nanyangxcx@163.com
authors.forename: Cai-Xia
authors.initials: CX
authors.lastname: Xie
authors.forename: Cheng-Ming
authors.initials: CM
authors.lastname: Dong
authors.forename: Shan-Lin
authors.initials: SL
authors.lastname: Gao
authors.forename: Hui-Zhen
authors.initials: HZ
authors.lastname: Qin
authors.forename: Yan
authors.initials: Y
authors.lastname: Bai
mesh_terms: D027742:Dioscorea / Q000737:chemistry* / Q000235:genetics* / Q000378:metabolism; D004144:Diosgenin / Q000032:analysis* / Q000302:isolation & purification; D004171:Diploidy; D004591:Electrophoresis, Polyacrylamide Gel; D010544:Peroxidases / Q000378:metabolism; D010940:Plant Proteins / Q000032:analysis; D011123:Polyploidy; D013482:Superoxide Dismutase / Q000378:metabolism; D046509:Tissue Culture Techniques
chemical_list: D010940:Plant Proteins; D010544:Peroxidases; D013482:Superoxide Dismutase; D004144:Diosgenin