欢迎访问《中国农学通报》,

中国农学通报 ›› 2015, Vol. 31 ›› Issue (34): 6-9.doi: 10.11924/j.issn.1000-6850.casb15060019

• 林学 园艺 园林 • 上一篇    下一篇

甜杨叶片高频率植株再生体系的建立

赵鑫闻   

  1. (辽宁省杨树研究所,辽宁盖州 115200)
  • 收稿日期:2015-06-03 修回日期:2015-11-06 接受日期:2015-08-25 出版日期:2015-12-17 发布日期:2015-12-17
  • 通讯作者: 赵鑫闻
  • 基金资助:
    辽宁省科学事业公益研究基金项目“黑杨花粉管通道导入外源DNA及其细胞学机理研究”(2011005007)。

Establishment of Highly Efficient Plant Regeneration System of Populous suaveolens

Zhao Xinwen   

  1. (Poplar Research Institute of Liaoning Province, Gaizhou Liaoning 115200)
  • Received:2015-06-03 Revised:2015-11-06 Accepted:2015-08-25 Online:2015-12-17 Published:2015-12-17

摘要: 为了利用甜杨的抗冻性基因并利用生物技术手段对杨属进行抗寒性改良,本研究以甜杨叶片为外植体,研究了不同激素组合对甜杨不定芽诱导、分化及生根的影响,建立了甜杨叶片高频率植株再生体系。结果表明,诱导甜杨叶片不定芽分化的最适培养基配方为,MS+BA 0.5 mg/L+NAA 0.05 mg/L,再生频率及平均不定芽数分别为98.8%和23.0,最适生根培养基配方为,1/2MS+IBA 0.3 mg/L,生根率可达100%。为杨属的抗寒性改良及其分子育种实践奠定了基础。

关键词: 植物, 植物, 尖孢镰刀菌, 枯萎病, 互作机制

Abstract: The study aims to exploit the antifreeze gene of Populous suaveolens and improve the resistance of poplar by biotechnology. Leaves of Populous suaveolens were used as explants to study the effect of different prescriptions of hormone on induction, differentiation of adventitious bud and rooting, and establish a plant regeneration system in vitro. The results showed that the optimum medium for adventitious bud regeneration was MS BA 0.5 mg/L NAA 0.05 mg/L with the frequency of adventitious bud regeneration of 98.8% and the number of shoots of 23.0. The optimum medium for rooting of shoots was 1/2MS IBA 0.3 mg/L with a rooting efficiency of 100%. The result of this study could lay a foundation for the improvement of the cold resistance of poplar and its molecular breeding.

中图分类号: