南京林业大学学报(自然科学版) ›› 2014, Vol. 57 ›› Issue (06): 160-164.doi: 10.3969/j.issn.1000-2006.2014.06.030

• 研究简报 • 上一篇    下一篇

普通油茶体胚再生体系研究

胡玉玲,姚小华*,任华东,王开良,龙 伟   

  1. 中国林业科学研究院亚热带林业研究所,浙江 富阳 311400
  • 出版日期:2014-12-31 发布日期:2014-12-31
  • 基金资助:
    收稿日期:2013-05-10 修回日期:2014-07-01
    基金项目:“十一五 ”国家科技支撑计划(2009BADB1B00,2009BADB1B01)
    第一作者:胡玉玲,博士生。*通信作者:姚小华,研究员。E-mail: yaoxh168@163.com。
    引文格式:胡玉玲,姚小华,任华东,等. 普通油茶体胚再生体系研究[J]. 南京林业大学学报:自然科学版,2014,38(6):160-164.

Study on somatic embryogenesis regeneration system in Camellia oleifera

HU Yuling, YAO Xiaohua*, REN Huadong, WANG Kailiang, LONG Wei   

  1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, China
  • Online:2014-12-31 Published:2014-12-31

摘要: 为构建农杆菌介导的油茶遗传转化受体系统,选择普通油茶‘长林'4号、53号和166号的幼胚为外植体材料,进行多因素多水平的组织培养试验。结果表明:培养基的pH对愈伤组织诱导率影响不显著,愈伤组织的诱导率受油茶品种影响极显著; ‘长林'53号的幼胚极易实现胚性愈伤组织诱导和完整植株再生,MS培养基是最佳培养基,2,4-D和TDZ为幼胚较敏感的植物激素,对愈伤组织诱导影响最大; 当MS+2 mg/L 2,4-D+0.5 mg/L TDZ处理时,‘长林'53号体胚诱导率为98%; MS+1 mg/L 2,4-D+2 mg/L KT+500 mg/L CH处理时,‘长林'53号体胚诱导率为89.6%。在不同2,4-D、KT、TDZ和添加物水平的L9(34)正交试验中,除3个处理外,其他处理组合的‘长林'53号体胚诱导率都达到100%。已分化的胚性愈伤组织在不含任何激素的MS培养基上,可以实现胚状体的萌发、生长及完整植株再生。

Abstract: In order to establish genetic transformation receptor system for oil camellia plant via agrobacterium-mediated, ‘Changlin' 4,53 and 166 immature zygotic embryos were used as explants to carry out multi-level and multi-factor tissue culture experiments,the results showed that: the effect of culture medium pH on the callus induction rate was not significant, but varieties had a significant effect on callus induction rate. Somatic embryo regeneration was observed from ‘Changlin' 53. MS and 2,4-D and TDZ were suitable for the embryo regeneration, the somatic embryogenesis induction rate was 98%, using MS+2 mg/L 2,4-D+0.5 mg/L TDZ, the somatic embryo induction rate was 89.6% based on MS+1 mg/L 2,4-D+2 mg/L KT+500 mg/L CH, and in addition 2,4-D, KT, TDZ and additives experiments, the somatic embryogenesis induction rate of ‘Changlin' 53 was 100%. In hormone-free MS medium, the differentiation embryos could regenerate to plant.

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