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植物研究 ›› 2002, Vol. 22 ›› Issue (3): 288-291.

• 论文 • 上一篇    下一篇

三倍体毛白杨组织脱分化培养与植株体再生

李毅1, 何明珠1, 马海芸2   

  1. 1. 甘肃农业大学林学院, 兰州 730007;
    2. 榆中县林业技术中心, 兰州 730010
  • 收稿日期:2001-03-06 出版日期:2002-09-15 发布日期:2016-06-14
  • 作者简介:李毅(1963-),男,副教授,主要从事林木遗传育种研究。
  • 基金资助:
    国家科技攻关(2001BA901A39)和甘肃省教委资助(9780570)项目。

INDUCTION, DIFFERENTIATION AND PLANT REGENERATION OF TRIPLOID CALLI OF POPULUS TOMENTOSA

LI Yi1, HE Ming-zhu1, MA Hai-yun2   

  1. 1. Forestry College, Gansu Agricultural University, Lanzhou 730007;
    2. Yuzhong Forestry Technology centre, Lanzhou 730010
  • Received:2001-03-06 Online:2002-09-15 Published:2016-06-14

摘要: 采用毛白杨三倍体幼叶作为外植体进行组织培养,以MS为基本培养基获得了再生植株。从NAA和IAA与6-BA间进行的18个正交试验中,选择出适宜脱分化培养基MS+6-BA 0.5mg/L+NAA 0.1mg/L,对三倍体毛白杨愈伤组织诱导率为87.6%。5种生长素与6-BA配比的再分化培养基中,12MS+IAA 0.1mg/L+6-BA 0.1mg/L对不定芽的分化诱导率可达到68.5%;MS+6-BA 0.5mg/L+NAA 0.01mg/L的培养基可使单芽直接增殖出7.4个芽。在MS+IBA 1.0mg/L的生根培养基上,试管苗的生根率可达85.7%。

关键词: 毛白杨, 三倍体, 愈伤组织, 分化, 生根

Abstract: Regenerating plants were produced from immature leaves of the triploid of Populus tomentosa by tissue culture on MS basic medium with different plant hormone. The result showed that callus induction frequency reached to 87.6 percent on MS+6-BA 0.5mg/L+NAA 0.1mg/L;differentiation frequency reached to 68.5 percent on 12MS+IAA 0.1mg/L+6-BA 0.1. It can be generated from one to 7.4 axillary shoots on MS+6-BA 0.5mg/L+NAA 0.01mg/L. Rooting frequency of the shoots got to 85.7 percent onMS+IBA 1.0mg/L.

Key words: Populus tomentosa, triploid, callus, differentiation, regeneration