journal6 ›› 2009, Vol. 30 ›› Issue (2): 90-93.

• 生物资源 • 上一篇    下一篇

蛇足石杉的组织培养初探

  

  1. (1.湖南省吉首大学省部共建生物工程实验室,湖南 吉首 416000;2.岳阳职业技术学院生物工程系,湖南 岳阳 414000)
  • 出版日期:2009-03-25 发布日期:2012-04-25
  • 通讯作者: 胡颂平(1969-),男,湖南湘潭人,吉首大学资环学院副教授,上海交通大学博士后,主要从事植物分子生态与植物资源利用研究;E-mail:husongping1969@163.com.
  • 作者简介:周颖(1987-),女,湖南湘潭人,吉首大学2008级研究生,主要从事分子生态和分子育种研究
  • 基金资助:

    湖南省科技计划项目(S2007N223);上海市农业生物基因中心资助项目(沪农基KY06001)

Tissue Culture of Huperzia Serrata

  1. (1.College of Biology and Environmental Sciences,Jishou University,Jishou 416000,Hunan China;2.Biological Engineering Department,Professional Technological College of Yueyang,Yueyang 414000,Hunan  China)
  • Online:2009-03-25 Published:2012-04-25

摘要:针对蛇足石杉资源分散,资源更新周期长,难以大规模开采的情况,初步探讨了蛇足石杉的组织培养技术.以蛇足石杉茎尖为外植体,分别在1/2MS+0.05  μmol/L IBA+1.4 μmol/L KT+2 mg/L谷氨酰胺、MS+0.05  μmol/L IBA+1.4 μmol/L KT+2 mg/L谷氨酰胺、1/2MS+2 mg/L谷氨酰胺/无激素、MS+2 mg/L谷氨酰胺/无激素等4种培养基中培养.结果显示:较为适宜的初代培养基为2号培养基,即MS+0.05  μmol/L IBA+1.4μ mol/L KT+2 mg/L谷氨酰胺.在组织培养工作中,污染问题比较严重,本实验中,采用了以下2种方法对外植体进行消毒:(1)70%酒精浸泡1 min→5% NaOCl浸泡1 min→7%H2O2浸泡10 min;(2)0.1%升汞液灭菌3’ →无菌水冲洗5次.结果显示第2种方法比较理想.

关键词: 蛇足石杉, 组织培养, 愈伤组织

Abstract: In this study,tissue culture was explored to solve the propagate problem in the production with Huperzia serrata(Thunb)Trev.The stem and shoot-tips were used as explants to induce callus.These explants are cultured in four culture mediums:(1) 1/2MS+0.05 μmol/L IBA+1.4μmol/L KT+2 mg/L pirydoxine;(2) MS+0.05 μmol/L IBA+1.4 μmol/L KT+2 mg/L pirydoxine;(3) 1/2MS+2 mg/L pirydoxine;(4) MS+2 mg/L pirydoxine.The results show that the suitable element compositions to induce callus is:MS+0.05 μmol/L IBA+1.4μmol/L KT+2 mg/L pirydoxine.During tissue culture,fungal pollution is very serious,so the surface disinfection is important.There are two variants of surface sterilization.In the first variant shoot-tips were soaked in 70% ethyl alcohol (C2H5OH) for 1 min,5% sodium hypochlorite (NaOCl) for 1 min and then in 7% hydrogen peroxide (H2O2) for 10 min;the second variant were soaked in HgCl for 3 min.The result shows that the most suitable procedure for surface sterilization of explants is the second one.

Key words: Huperzia serrata(Thun)Trev, tissue culture, callus

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