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中国农学通报 ›› 2020, Vol. 36 ›› Issue (16): 67-72.doi: 10.11924/j.issn.1000-6850.casb20190400010

• 林学·园艺·园林 • 上一篇    下一篇

大花绣球‘无尽夏’组培苗叶片再生植株的研究

孙晓波(), 苏家乐, 陈双双, 梁丽建, 邓衍明*()   

  1. 江苏省高效园艺作物遗传改良重点实验室/江苏省农业科学院休闲农业研究所,南京 210014
  • 收稿日期:2019-04-18 修回日期:2019-07-16 出版日期:2020-06-05 发布日期:2020-05-20
  • 通讯作者: 邓衍明
  • 基金资助:
    江苏省农业科技自主创新项目“切花绣球采后花色调控技术研究”[CX(18)3032];昆山市生态农业科技专项“绣球种苗快繁与花色调控技术集成示范与推广”(KN1809)

Plantlet Regeneration from Leaves of Tissue Culture Seedlings of Hydrangea macrophylla ‘Endless Summer’

Sun Xiaobo(), Su Jiale, Chen Shuangshuang, Liang Lijian, Deng Yanming*()   

  1. Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement/Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing 210014
  • Received:2019-04-18 Revised:2019-07-16 Online:2020-06-05 Published:2020-05-20
  • Contact: Deng Yanming

摘要:

为建立大花绣球‘无尽夏’规模化无性繁殖和高效遗传转化体系,以‘无尽夏’组培苗叶片为外植体,研究叶位、暗培养时间及不同激素组合等因素对叶片诱导形成愈伤及分化不定芽的影响。结果表明,‘无尽夏’组培苗植株中上部叶片的愈伤诱导效果好,适宜的外植体取样叶位为第3~6位叶片。初始暗培养有利于叶片形成愈伤,暗培养15~25天的效果最佳。诱导‘无尽夏’组培苗叶片形成愈伤的适宜培养基为MS+CPPU 3.0 mg/L+IBA 0.1 mg/L,其愈伤诱导率达到98%以上;愈伤增殖与不定芽分化培养基为MS+6-BA 1.0~2.25 mg/L+IBA 0.1 mg/L。

关键词: 大花绣球, 组培苗叶片, 愈伤, 植株再生

Abstract:

The paper aims to establish a large-scale asexual reproduction system and efficient genetic transformation system of Hydrangea macrophylla ‘Endless Summer’. The effects of leaf position, dark culture time and different hormone combinations on callus induction of leaves from ‘Endless Summer’ tissue culture seedlings and adventitious bud differentiation were studied. The results showed that the callus induction effect of the upper and middle leaves of a plantlet was good, and the 3 rd to 6th leaves were suitable for explant sampling. Initial dark culture was beneficial to leaf callus formation and the best effect of dark culture was 15-25 days. The optimum medium for inducing callus formation in leaves of ‘Endless Summer’ tissue-culture seedlings was MS+CPPU 3.0 mg/L+IBA 0.1 mg/L, the callus induction rate was over 98%. The medium for callus proliferation and adventitious bud differentiation was MS+6-BA 1.0-2.25 mg/L+IBA 0.1 mg/L.

Key words: Hydrangea macrophylla, leaves of tissue culture plantlets, callus, plantlet regeneration

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