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中国农学通报 ›› 2020, Vol. 36 ›› Issue (21): 48-52.doi: 10.11924/j.issn.1000-6850.casb20190500172

所属专题: 园艺

• 林学·园艺·园林 • 上一篇    下一篇

两种南瓜再生体系建立的方法

闵子扬1,2, 韩小霞1, 李勇奇1, 胡新军1()   

  1. 1 湖南省蔬菜研究所,长沙 410125
    2 湖南农业大学园艺园林学院,长沙 410128
  • 收稿日期:2019-05-15 修回日期:2019-05-30 出版日期:2020-07-25 发布日期:2020-07-21
  • 通讯作者: 胡新军
  • 作者简介:闵子扬,男,1989年出生,河南驻马店人,助理研究员,博士生,研究方向:瓜类作物种质资源创制与新品种选育。通信地址:410125 湖南省长沙市芙蓉区远大二路892号 湖南省农业科学院蔬菜研究所,Tel:18774096438,E-mail:minziyang1220@163.com。
  • 基金资助:
    湖南省农业科技创新资金项目“南瓜单倍体种质资源创制”(2018QN11)

Regeneration System of Pumpkin: Two Establishment Methods

Min Ziyang1,2, Han Xiaoxia1, Li Yongqi1, Hu Xinjun1()   

  1. 1 Vegetable Institution of Hunan Academy of Agricultural Science, Changsha 410125
    2 College of Horticulture and Landscape, Hunan Agricultural University, Changsha 410128
  • Received:2019-05-15 Revised:2019-05-30 Online:2020-07-25 Published:2020-07-21
  • Contact: Hu Xinjun

摘要:

为建立不同途径的南瓜再生体系,以‘大果蜜本’南瓜种子子叶节和授粉后2天的子房为外植体,对南瓜愈伤组织和胚状体发育两种再生途径进行研究。结果表明:愈伤组织发育途径中,3%的次氯酸钠溶液消毒15 min是最佳灭菌方式,MS+3.0 mg/L6-BA+ 0.1 mg/L NAA是诱导南瓜子叶节丛生芽形成的最佳培养基,MS+0.2 mg/L NAA是诱导单芽成苗的最佳培养基;胚状体发育途径中MS+4.0 mg/L 2,4-D+0.5 mg/L NAA+1.0 mg/L 6-BA和MS+0.06 mg/L TDZ均能有效诱导南瓜胚状体形成,MS培养基是诱导胚状体成苗最佳培养基。本研究成功建立了南瓜愈伤组织和胚状体发育两种途径形成再生植株的体系。

关键词: 南瓜, 愈伤组织, 胚状体, 再生体系

Abstract:

To establish different regeneration systems of pumpkin, the cotyledon nodes of pumpkin seeds and two-day ovaries after pollination of ‘daguo miben’ were used as explants to study the two regeneration pathways of callus and embryoid development. The result showed that, in the process of callus development, 3% Naclo solution for 15 minutes was the best way to sterilize callus, MS+3.0 mg/L 6-BA+0.1 mg/L NAA was the best medium to induce cluster bud formation, MS+0.2 mg/L NAA was the best medium to induce single bud seedling formation. Both MS+4.0 mg/L 2,4-D+0.5 mg/L NAA+1.0 mg/L 6-BA and MS+0.06 mg/L TDZ could effectively induce the formation of pumpkin embryoid, and MS medium was the most helpful for embryoid seedling formation. In this study, the two developmental pathways (callus and embryoid) were successfully established for regeneration systems of pumpkin.

Key words: pumpkin, callus, embryoid, regeneration system

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