生物技术通报 ›› 2013, Vol. 0 ›› Issue (3): 77-82.

• 研究报告 • 上一篇    下一篇

谷子成熟胚诱导愈伤组织及植株再生的研究和条件的优化

袁进成1,刘颖慧1,董志平2   

  1. 1. 河北北方学院,张家口 075000 ;2. 河北农林科学院谷子研究所,石家庄
  • 收稿日期:2012-07-09 修回日期:2013-03-21 出版日期:2013-03-20 发布日期:2013-03-21
  • 作者简介:袁进成,硕士,副教授,研究方向:植物种质资源;E-mail :jinchenyuan@126.com 通讯作者,董志平,硕士,研究员,研究方向:谷子抗锈育种;E-mail :dzhping@126.com
  • 基金资助:
    “十二五”农村领域国家科技计划项目(2011BAD06B01),河北省自然科学基金项目(C2011405022)

Evaluation and Optimization on Callus Induction and Regeneration of Mature Embryo in Millet(Tetaria italica)

Yuan Jincheng1, Liu Yinghui1, Dong Zhiping2   

  1. 1. Hebei North University,Zhangjiakou 075000 ;2. Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang)
  • Received:2012-07-09 Revised:2013-03-21 Published:2013-03-20 Online:2013-03-21

摘要: 选用4 个谷子品种,“冀谷11”、“豫谷2 号”、“铁谷5 号”和“十里香”研究在不同条件下谷子成熟胚的再生能力及其影响因素。研究表明谷子的再生能力受基因型影响较大,不同谷子品种诱导愈伤和愈伤分化能力不同,4 个品种中以“冀谷 11”的再生能力最好。后续试验用“冀谷11”研究不同培养基、不同激素配比以及培养基的添加物对谷子再生能力的影响。结果 表明LS 培养基适合谷子的愈伤组织诱导,MSB5 培养基适合谷子的分化;所试验的碳源中麦芽糖适合愈伤的诱导和分化;谷子诱 导愈伤较好的激素配比是2,4-D+ZT,愈伤分化较优的激素配比为NAA 和6-BA 的组合。另外,硝酸银、酸水解酪蛋白、脯氨酸 及山梨醇等添加物会提高谷子的再生能力。

关键词: 谷子, 愈伤组织, 再生, 诱导

Abstract: In this paper, four millet varieties “JI GU11”, “YU GU2”, “TIE GU5” and “SHI LI XIANG” seeds were used to induce calli, and the factors which influence callus induce rate and seedling regenerate rate were stuied. Variable frequencies of callus initiation were observed among the varieties. The vareity “JIGU11” exhibited high callus induction efficiency and selected for further study. Four media, three carbon sources at different concentrations, different concentrations of tryptophan, casein hydrolysate, gelrite and sorbitol were tested. The concentrations and combination of different hormones were also examined. The results suggested that the optimal callus induction medium was LS supplemented with 2 mg/L 2, 4-D combination with 1 mg/L ZT and 50 g/L maltose, 1 g/L casein hydrolysate, 50 mg/L tryptophan, 4% sorbitol and 0.5% gelrite. While maximum regeneration response was detected on MSB5 medium fortified with 0.5 mg/L NAA+2.0 mg/L 6-BA, 30 g/L maltose plus 4% sorbitol.

Key words: Millet Callus, Induction, Regeneration