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园艺学报 ›› 2010, Vol. 37 ›› Issue (1): 103-108.

• 研究报告 • 上一篇    下一篇

利用枣离体叶片直接再生完整植株

王娜1, 2 ;刘孟军1*;秦子禹3   

  1. (1 河北农业大学中国枣研究中心, 河北保定071001; 2 河北科技师范学院园艺园林系, 河北秦皇岛066600; 3 河北科技师范学院生命科技学院, 河北秦皇岛066600)
  • 收稿日期:2009-07-11 修回日期:2009-11-18 出版日期:2010-01-25 发布日期:2010-01-25
  • 通讯作者: 刘孟军

Direct Plant Regeneration from in Vitro Leaves of Chinese Jujube

WANG Na1, 2 ;LIU Meng-jun1*;QIN Zi-yu3   

  1. (1Research Center of Chinese Jujube, Agricultural University of Hebei, Baoding, Hebei 071001, China; 2Department of Horticulture and Landscape Architecture Science, Hebei NormalUniversity of Science and Technology, Qinhuangdao, Hebei 066600, China; 3College of Life Science and Technology, Hebei Normal University of Science and Technology, Q inhuangdao, Hebei 066600,China)
  • Received:2009-07-11 Revised:2009-11-18 Online:2010-01-25 Published:2010-01-25
  • Contact: LIU Meng-jun

摘要: 以冬枣组培苗叶片为材料进行离体再生培养, 通过对再生条件的系统研究, 实现了离体叶片直接再生不定芽并获得完整植株。试验结果表明: 麦芽糖为离体叶片直接再生的适宜碳源; AgNO3可显著提高叶片不定芽再生率和出芽数, 在TDZ 1.0 mg·L - 1 +AgNO3 1.0 mg·L - 1的条件下, 不定芽直接再生率高达97.3% , 出芽数达14.4个。但麦芽糖不适宜继续作为不定芽伸长培养的碳源, 再生的不定芽需在MS+ 蔗糖40 g·L - 1 + 琼脂4 g·L - 1 +BA 1.0 mg·L - 1 + IBA 0.5 mg·L - 1的培养基上进行增殖, 增殖系数为3.2。在IBA1.0 mg·L - 1条件下, 生根率达87.3%。

关键词: 枣, 叶片, 离体, 直接再生, 不定芽

Abstract: A system of complete plantlet regeneration directly from in vitro leaf of Chinese jujube ( Ziziphus jujuba Mill. ‘Dongzao’) was established after investgating proper culture conditions. Carbon source plays a key role on direct shoot inducement from in vitro leaf and maltose is the proper carbon source. AgNO3 could significantly improve the shoot regeneration rate and increase the shoot numbers. Under the medium of MS supplemented with TDZ 1.0 mg ·L - 1 + AgNO3 1.0 mg ·L - 1 , the highest shoot regeneration rate (97.3%) and shoot numbers (14.4) were obtained. But maltose was not suitable for the subsequent shoot growth. Regenerated shoots were growed and proliferated on medium of MS + sucrose 40 g·L - 1 + agar 4 g·L - 1 +BA 110 mg·L - 1 + IBA 0.5 mg·L - 1 with multiplication coefficient of 3.2. The complete plantlets were obtained after the shoots were rooted on MS medium plus IBA 110 mg·L -1 with rooting rate of 87.3%.

Key words: Ziziphus jujuba, leaf, in vitro, direct regeneration, adventitious shoot

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