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植物研究 ›› 2002, Vol. 22 ›› Issue (2): 247-251.

• 论文 • 上一篇    下一篇

根癌农杆菌介导GUS基因对白桦转化的研究

于景华, 祖元刚, 孔瑾, 石福臣, 聂明珠, 唐中华   

  1. 东北林业大学森林植物生态学教育部重点实验室, 哈尔滨 150040
  • 收稿日期:2001-09-20 出版日期:2002-06-15 发布日期:2016-06-14
  • 作者简介:于景华(1972-),男,讲师,主要从事植物分子生态学研究。
  • 基金资助:
    国家自然科学基金资助项目(39870634)。

THE STUDY ON AGROBACTERIUM TUMIFACIENS-MEDIATED TRANSFORMATION FOR WHITE BIRCH(BETULA PLATYPHYLLA) FLASK CONTAINING GUS

YU Jing-hua, ZU Yuan-gang, KONG Jin, SHI Fu-chen, NIE Ming-zhu, TANG Zhong-hua   

  1. Key Laboratory of Forest Plant Ecology, Ministry of Education, P. R. China, Harbin, 150040
  • Received:2001-09-20 Online:2002-06-15 Published:2016-06-14

摘要: 本文报道了根癌农杆菌介导GUS基因转化白桦叶盘的研究方法,对转化过程中各种因素进行了全面探讨,结果表明:白桦叶盘对卡那霉素的敏感实验,得出最适筛选浓度为50mg/l;对头孢霉素和羧苄青霉素的抑菌实验,最适抑菌浓度为500mg/l;100μMAS的加入可将抗性不定芽的诱导率提高3倍;3~4d的预培是最适合叶盘转化的时间;10~20min是最适合叶盘浸染的时间;3~4d的共培养对于叶盘转化比较合理。在上述最适合的转化条件下,农杆菌介导的GUS基因对白桦叶盘的转化获得了抗性再生植株,转化率为2.8%。

关键词: 白桦, 叶盘法, GUS基因, 基因转化, 根癌农杆菌

Abstract: Agrobacterium tumifaciens-mediated transformation for leaf disc of Betula platyphylla containing GUS was investigated and factors on Agrobacterium tumefaciens-mediated gene transfer is also discussed in detail. The optimal concentration of kanamycin to strain fungus is 50mg/l and of carbenicillin and cefotaxime is 500mg/l. Regeneration ratio of adventitious buds will improve 3-fold by adding of 100μM AS to regeneration medium. The optimal pre-cultivation period for leaf disc transformation is 3~4 days, the ideal time for leaf disc dipping in Agrobacterium is 10~20 minutes, and the optimal co-cultivation is 4 days. Transformed plants of white birch were obtained under above conditions and the transformation rate is 2.8%.

Key words: White birch, Leaf disc, GUS gene, Gene transformation, Agrobacterium tumifaciens