title: [Study on hydroxyproline tolerance of different cultivars of Chrysanthemum morifolium in vitro].
abstract: OBJECTIVE
  To investigate hydroxyproline tolerance of Chrysanthemum morifolium plantlets included " Boju", "Huaiju", "Chuju", "Gongju" and "Hangju",and provide references basis for excellent cultivar and breeding of Ch. morifolium.
  
  
  METHODS
  Plantlets in vitro from five kinds of Ch. morifolium were inoculated on medium added with different concentrations of hydroxyproline. Free proline in leaves from plantlets was determined, then the damage index and survival rate were compared.
  
  
  CONCLUSIONS
  The results showed that hydroxyproline tolerance of " Boju" and "Huaiju" were superior, the survival rates and free proline of them were higher, but the damage index was inferior. The hydroxyproline tolerance of "Hangju" was the worst, and the survival rate was minimum. The survival rate of "Chuju" and "Gongju" was between "Boju" and " Hangju", and the hydroxyproline tolerance of them was also medium.
authors.affiliation: School of Life Science, Huaibei Normal University, Huaibei 235000, China.
authors.forename: Yanfang
authors.initials: Y
authors.lastname: Zhu
authors.forename: Zhaoyang
authors.initials: Z
authors.lastname: Guo
authors.forename: Jianping
authors.initials: J
authors.lastname: Xue
authors.forename: Aimin
authors.initials: A
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Sheng
authors.forename: Yunxian
authors.initials: Y
authors.lastname: Song
mesh_terms: D031202:Chrysanthemum / Q000737:chemistry / Q000145:classification / Q000378:metabolism*; D046508:Culture Techniques; D006909:Hydroxyproline / Q000032:analysis / Q000378:metabolism*
chemical_list: D006909:Hydroxyproline