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中国沙漠 ›› 2009, Vol. 29 ›› Issue (2): 312-315.

• 生物土壤与生态 • 上一篇    下一篇

沙生濒危物种霸王的高频植株再生研究

孙兰弟1, 管利萍1, 张颖聪1, 吴大利1, 张彦萍1, 侯岁稳1,2*   

  1. 1.兰州大学生命科学学院 干旱与草地生态教育部重点实验室, 甘肃 兰州 730000; 2.中国科学院近代物理研究所, 甘肃 兰州 730000
  • 收稿日期:2007-10-12 修回日期:2007-12-03 出版日期:2009-03-20 发布日期:2009-03-20

High-efficiency Plant Regeneration of Zygophyllum xanthoxylon (Bunge) Maxim, an Endangering Desert Plant

SUN Lan-di1, GUAN Li-ping1, ZHANG Ying-cong1, WU Da-li1, ZHANG Yan-ping1, HOU Sui-wen1,2   

  1. 1.Key Laboratory of Arid and Grassland Ecology, Ministry of Education; School of Life Sciences, Lanzhou University, Lanzhou 730000, China; 2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2007-10-12 Revised:2007-12-03 Online:2009-03-20 Published:2009-03-20

摘要:

实验选用霸王无菌苗的茎尖、子叶、下胚轴和胚根作为材料,研究霸王不同外植体的离体培养技术。结果表明,霸王茎尖是诱导丛生芽的良好外植体,而子叶、下胚轴和胚根是诱导愈伤组织的良好外植体;霸王茎尖的最适增殖培养基是:MS+6-BA 5.0 mg·L-1+NAA 1.0 mg·L-1;最适生根培养基是:MS+IAA 1.5 mg·L-1;最适愈伤组织诱导培养基是:MS+6-BA 1.0 mg·L-1或MS+6-BA 1.0 mg·L-1+NAA 0.5 mg·L-1。沙质基质为霸王组培苗过渡的最佳基质。

关键词: 霸王, 组织培养, 外植体

Abstract:

The shoot tips, cotyledons, hypocotyls and radicles of Zygophyllum xanthoxylon (Bunge) Maxim were cultured in vitro to develop rapid propagation technology. The results showed that the shoot tips are good explants of shoot multiplication and the cotyledons, hypocotyls and radicles are good explants of callus induction; the optimum multiplication medium is MS+6-BA 5.0 mg\5L-1+NAA 1.0 mg\5L-1; the best medium for rooting is MS+IAA 1.5 mg\5L-1; the desirable callus induction medium is MS+6-BA 1.0 mg\5L-1 or MS+6-BA 1.0 mg\5L-1+NAA 0.5 mg\5L-1. Plantlets with well-developed shoots and roots were acclimatized successfully in fluviatile sand and then grew vigorously in soil, mixed with sand (1∶1).

Key words: Zygophyllum xanthoxylon (Bunge) Maxim, tissue culture, explant

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