生物技术通报 ›› 2013, Vol. 0 ›› Issue (4): 69-74.

• 研究报告 • 上一篇    下一篇

甘蓝型油菜下胚轴和带柄子叶再生体系研究

郝晓云1, 沈海涛1,2, 李鸿彬1,2   

  1. 1. 石河子大学生命科学学院,石河子 832003 ;2. 石河子大学 农业生物技术重点实验室,石河子 832003
  • 收稿日期:2012-11-05 修回日期:2013-04-22 出版日期:2013-04-22 发布日期:2013-04-22
  • 作者简介:郝晓云,女,硕士研究生,研究方向:可再生能源开发利用与新能源工程;E-mail :hxy7630346@126.com
  • 基金资助:
    国家自然科学基金项目(30860031,31260339),农业部转基因重大专项(2009ZX08005-027B)

Research on the Regeneration System from Hypocotyls and Cotyledon of Brassica napus L.

Hao Xiaoyun1, Shen Haitao1,2, Li Hongbin1,2   

  1. 1. College of Life Science of Shihezi Universtiy,Shihezi 832003 ;2. Key Laboratory of Agrobiotechnology of Shihezi University,Shihezi 832003
  • Received:2012-11-05 Revised:2013-04-22 Published:2013-04-22 Online:2013-04-22

摘要: 以甘蓝型油菜野油19 号的下胚轴和带柄子叶为外植体,研究其下胚轴和带柄子叶在不同浓度激素配比下的分化率 及再生频率的变化。该品系的油菜下胚轴和带柄子叶在1.5 mg/L 的2,4-D 中预培养4 d 后,转入分化培养基中,其愈伤组织形成早, 发生快,再生频率和分化频率均较高。其中,下胚轴转入MS+3 mg/L 6-BA +0.1 mg/L NAA 培养基中的分化率和再生频率最高,再 生频率达到86.67% ;带柄子叶外植体的再生频率要比下胚轴的再生频率低,在MS+4 mg/L 6-BA+0.3 mg/L NAA 的分化培养基中芽 的再生频率为46.67%。本研究初步建立了甘蓝型油菜野油19 号的高频率再生体系。

关键词: 甘蓝型油菜, 下胚轴, 带柄子叶, 再生频率, 分化频率

Abstract: To study the changes in the hypocotyls and quizzing cotyledon differentiated and plant regeneration frequency under different concentrations of hormone combinations, hypocotyls and cotyledons with petiole of Brassica napus L.(wild-oil 19)were taken as explants. The results showed that, after pre-cultured for 4 days using 1.5 mg/L 2, 4-D and transferred to differentiated medium of hypocotyls and cotyledons with Petiole, the derived callus initiated earlier and developed faster with a higher induced frequency. Among them, the hypocotyls transferred to the MS +3 mg/L 6-BA +0.1 mg/L NAA as differentiated medium reached the highest regeneration frequency of 86.67% ;However, the regeneration frequency of cotyledon explants was much lower than hypocotyls with a final regernation frequency of 46.67% using MS with 4 mg/L 6-BA and 0.3 mg/L NAA as differentiated medium. In this study, the high frequency regeneration system of Brassica napus L.(wild-oil 19)was established.

Key words: Brassica napus L., Hypocotyl, Cotyledons with petiole, Regeneration frequency, Differentiation frequency