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中国农学通报 ›› 2014, Vol. 30 ›› Issue (10): 129-134.doi: 10.11924/j.issn.1000-6850.2013-2217

所属专题: 园艺

• 林学 园艺 园林 • 上一篇    下一篇

番茄‘黄樱桃-2号’再生体系研究

谢雯琦 苏慧慧 黎振兴 李植良 孙保娟 李涛   

  • 收稿日期:2013-08-19 修回日期:2013-08-31 出版日期:2014-04-05 发布日期:2014-04-05
  • 基金资助:
    广东省农业攻关项目“利用聚合杂交育种技术培育高品质耐贮运番茄新品种”(2011B020303002);广东省农业攻关项目“幽门螺杆菌转基因番茄双价口服疫苗的研制”(2011B020303006);广东现代农业产业技术体系建设专项基金“广东岭南特色蔬菜杂交育种共性关键技术研究”(2012A020100006);现代农业产业技术体系建设专项“优良蔬菜新品种及栽培技术示范推广”(CARS-25-G-36);广东省农业科学院院长基金“组蛋白乙酰化对番茄抗青枯病的机制研究”(201303);东莞市高等院校、科研机构科技计划项目。

The Study of Efficient Plant Regeneration of Lycopersivon esculentum Mill.‘Huangyingtao No 2'

  • Received:2013-08-19 Revised:2013-08-31 Online:2014-04-05 Published:2014-04-05

摘要: 以番茄‘黄樱桃-2号’的子叶切段为外植体,研究不同激素组合对愈伤组织产生以及再生芽诱导的影响。结果表明,不同种类和浓度的激素诱导形成的‘黄樱桃-2号’愈伤组织和再生芽数目存在差异,最适培养基为:MS+ 6-BA 2.5 mg/L+ IAA 0.2 mg/L,出愈率可达到95.08%,每个外植体再生芽数约为5。最适生根培养基为:1/2MS+ IAA 0.2 mg/L。通过观察头孢霉素和羧苄青霉素2种抗生素对子叶愈伤组织和再生芽诱导情况的影响,确定‘黄樱桃-2号’子叶的除菌培养基为:MS+ 6-BA 2.5 mg/L+ IAA 0.2 mg/L+ 头孢霉素 200 mg/L+ 羧苄青霉素 200 mg/L。同时还对作为筛选剂的卡那霉素进行了浓度筛选,确定了卡那霉素对‘黄樱桃-2号’子叶的筛选浓度为50 mg/L。

关键词: 营养品质, 营养品质

Abstract: The effects of different hormone combinations on callus induction and bud differentiation of cotyledons in Lycopersivon esculentum Mill.‘Huangyingtao No 2’were studied. Differences in numbers of callus and regeneration buds were showed under different hormone treatments. The optimum medium to induce callus and regeneration buds was MS+ 6-BA 2.5 mg/L+ IAA 0.2 mg/L, with induction of callus rate up to 95.08% and regeneration buds averaged five. Roots of generation buds were induced normally in 1/2MS+ IAA 0.2 mg/L. According to effects of cefotaxime (Cef) and carbenicillin (Carb) to cotyledons regeneration, medium to remove agrobacterium was MS+ 6-BA 2.5 mg/L+ IAA 0.2 mg/L+ Cef 200 mg/L+ Carb 200 mg/L. Meanwhile, as a widely used selective agent for transgenic plants, kanamycin should be applied at concentration which can not only select positive plants efficiently but also do no harm to cotyledons regeneration. After treatments of kanamycin (Kan) to cotyledons at different concentration, 50 mg/L was found to be the optimum concentration.