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中国农学通报 ›› 2009, Vol. 25 ›› Issue (22): 0-0.

• 生物技术科学 •    

高效表达dsRNA大肠杆菌BL21 RNase Ⅲ- 的构建

卢从德 王代钢 杨金宏 禚苏   

  • 收稿日期:2009-07-01 修回日期:2009-07-20 出版日期:2009-11-20 发布日期:2009-11-20

Construction of an highly producing dsRNA Escherichia coli strain BL21 RNase Ⅲ-

  • Received:2009-07-01 Revised:2009-07-20 Online:2009-11-20 Published:2009-11-20

摘要: 应用PKD46介导的重组系统,在大肠杆菌BL21菌株体内,对其染色体上的RNase Ⅲ基因进行了基因敲除,建立了一株能够利用IPTG诱导高效合成dsRNA的BL21 RNase Ⅲ-菌株。为进一步降低RNAi技术的生产应用成本奠定了基础。

关键词: 日本松干蚧, 日本松干蚧, 检疫性有害生物, 生物入侵, 松树

Abstract: RNase Ⅲ was deleted in Escherichia coli BL21 chromosome using homologous recombination system PKD46. A RNase Ⅲ- recombinant bacterium strain that can highly producing dsRNA was obtained. The recombinant bacterium strain would be able to lay foundation for applications of RNAi cheaply.