浙江农业科学 ›› 2026, Vol. 67 ›› Issue (2): 431-437.DOI: 10.16178/j.issn.0528-9017.20240549

• 观赏园艺 • 上一篇    下一篇

杜鹃花品种暖羊羊叶片离体再生体系的建立

邹荣娴1(), 胡国伟2, 任广兵3, 陶楚冰1, 滕新蕾1, 孟羽1, 肖政1, 赵宏波1()   

  1. 1.浙江农林大学 风景园林与建筑学院/浙江省园林植物种质创新与利用重点实验室/南方园林植物创新与利用国家林业和草原局重点实验室,浙江 杭州 311300
    2.物产中大长乐林场有限公司,浙江 杭州 311100
    3.济南市公园发展服务中心,山东 济南 250100
  • 收稿日期:2024-07-08 出版日期:2026-02-28 发布日期:2026-03-07
  • 通讯作者: 赵宏波,E-mail:zhaohb@zafu.edu.cn
  • 作者简介:邹荣娴,研究方向为园林植物与观赏园艺。E-mail:15088583086@163.com
  • 基金资助:
    浙江省农业新品种选育重大科技专项(2021C02071-2);浙江农林大学科研发展基金项目(2022LFR079)

Establishment of an in vitro leaf regeneration system for Rhododendron molle Nuanyangyang

ZOU Rongxian1(), HU Guowei2, REN Guangbing3, TAO Chubing1, TENG Xinlei1, MENG Yu1, XIAO Zheng1, ZHAO Hongbo1()   

  1. 1.College of Landscape and Architecture,Zhejiang A&F University/Zhejiang Provincial Key Laboratory of Germplasm Innovation and Utilization for Garden Plants/ Key Laboratory of National Forestry and Grassland Administration on Germplasm Innovation and Utilization for Southern Garden Plants,Hangzhou 311300,Zhejiang
    2.Wuchan Zhongda Changle Forest Farm Company,Hangzhou 311100,Zhejiang
    3.Jinan Park Development Service Center,Jinan 250100,Shandong
  • Received:2024-07-08 Online:2026-02-28 Published:2026-03-07

摘要:

为了建立杜鹃花品种暖羊羊的叶片离体再生体系,本研究以其无菌苗叶片为外植体,系统比较了木本植物培养基(WPM)、MS培养基(MS)和1/2 MS这3种基本培养基,玉米素(ZT)、噻苯隆(TDZ)和吲哚丁酸(IBA)3种植物生长调节剂的浓度组合,及叶片放置方式对不定芽诱导和增殖的影响,并进一步探讨了不同浓度的IBA和萘乙酸(NAA)对不定芽生根的影响。结果表明:WPM为最适合的不定芽诱导基本培养基,添加0.1 mg·L-1 TDZ和0.2 mg·L-1 IBA时,不定芽诱导率最高(77.99%);WPM中添加4 mg·L-1 ZT和0.2 mg·L-1 IBA时,增殖系数最高(4.18);叶片背面接种时的诱导率高于叶片正面接种;WPM中添加0.5 mg·L-1 ZT和0.5 mg·L-1 IBA时壮苗效果最好;在1/2 WPM中添加0.8 mg·L-1 NAA时生根率最高(98.38%)。本研究结果为杜鹃花新品种的快繁和遗传转化体系的建立提供技术依据。

关键词: 杜鹃花, 离体叶片, 不定芽, 再生

Abstract:

To establish an efficient leaf in vitro regeneration system for Rhododendron molle Nuanyangyang,this study used leaves from sterile plantlets as explants. It systematically compared the effects of three basal media—Woody Plant Medium (WPM),Murashige and Skoog (MS) medium,and 1/2 MS medium,as well as three plant growth regulators—zeatin (ZT),thidiazuron (TDZ),and indole-3-butyric acid (IBA),and leaf placement orientation on adventitious bud induction and proliferation. The effects of different concentrations of IBA and naphthaleneacetic acid (NAA) on root induction were also investigated. The results indicated that WPM was the optimal basal medium for adventitious bud induction. The highest induction rate (77.99%) was achieved with 0.1 mg·L-1 TDZ and 0.2 mg·L-1 IBA,while the highest proliferation coefficient (4.18) was obtained with 4 mg·L-1 ZT and 0.2 mg·L-1 IBA in WPM. The induction rate was higher with abaxial-side inoculation than with adaxial-side inoculation. The most robust shoots were obtained on WPM with 0.5 mg·L-1 ZT and 0.5 mg·L-1 IBA,and the highest rooting rate (98.38%) was achieved on 1/2 WPM containing 0.8 mg·L-1 NAA. This study provides a technical foundation for the rapid propagation and establishment of a genetic transformation system for new cultivars in Rhododendronmolle.

Key words: Rhododendron molle, in vitro leaf, adventitious bud, regeneration

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