华北农学报 ›› 2011, Vol. 26 ›› Issue (4): 194-197. doi: 10.7668/hbnxb.2011.04.034

所属专题: 生物技术

• 论文 • 上一篇    下一篇

苏云金芽孢杆菌SHJ-5菌株杀虫晶体蛋白基因分析

杜立新1, 董明1, 王容燕1, 马铭泽2, 王金耀1, 曹伟平1, 宋健1, 冯书亮1   

  1. 1. 河北省农林科学院植物保护研究所, 河北省农业有害生物综合防治工程技术研究中心, 河北保定 071000;
    2. 河北省农林科学院, 河北石家庄 050051
  • 收稿日期:2011-01-27 出版日期:2011-08-28
  • 通讯作者: 冯书亮(1957-),男,河北邢台人,研究员,主要从事杀虫微生物研究。
  • 作者简介:杜立新(1978-),男,河北武安人,助理研究员,在读博士,主要从事植物病害生物防治工作。
  • 基金资助:
    国家“863”计划项目(2011AA10A203);国家科技支撑项目(2006BAD08A02);国家科技支撑项目(2008BADA5B07)

Identification of cry Gene from a Novel Bacillus thuringiensis Isolate SHJ-5

DU Li-xin1, DONG Ming1, WANG Rong-yan1, MA Ming-ze2, WANG Jin-yao1, CAO Wei-ping1, SONG Jian1, FENG Shu-liang1   

  1. 1. Institute of Plant Protection, Hebei Academy of Agriculture and Forestry Sciences, IPM Centre of Hebei Province, Baoding 071000, China;
    2. Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
  • Received:2011-01-27 Published:2011-08-28

摘要: 苏云金芽孢杆菌SHJ-5菌株是从黑龙江采集的土样中分离获得的新菌株,对其伴孢晶体形状、基因型、蛋白表达以及杀虫活性进行了系统研究。菌株SHJ-5产生的伴孢晶体形状为钝菱形;利用PCR-RFLP技术对该菌株的基因型进行鉴定,结果表明,该菌株含有cry1Aa、cry1Ea、cry1Be、cry1Ah、cry1Ai、cry2Ab、cry1i和vip3A基因;SDS-PAGE晶体蛋白检测结果显示,该菌株表达130~150 kDa和60 kDa大小蛋白;生物活性测定表明,菌株SHJ-5对棉铃虫和小菜蛾有较高杀虫活性,校正死亡率分别为100%和96.7%。

关键词: 苏云金芽孢杆菌, PCR-RFLP, 克隆, 杀虫活性

Abstract: The novel Bacillus thuringiensis SHJ-5 was isolated from the soil in Heilongjiang province.This paper was a study on the strain SHJ-5,including that the shape of the crystal,the cry-type,protein expression and insecticidal activity.It produced blunt diamond-shaped crystals.It was identified that strain SHJ-5 contained cry1Aa,cry1Ea,cry1Be,cry1Ah,cry1Ai,cry2Ab,cry1I and vip3A gene by PCR-RFLP.SDS-PAGE analysis indicated that the strain produced a 130-150 kDa protein and a 60 kDa protein.Bioassay showed that strain SHJ-5 had high insecticidal activity to Helicoverpa armigera and Plutella xylostella.The corrected mortality to the two target insects was 100% and 96.7%,respectively.

Key words: Bacillus thuringiensis, PCR-RFLP, Clone, Insecticidal activity

中图分类号: 

引用本文

杜立新, 董明, 王容燕, 马铭泽, 王金耀, 曹伟平, 宋健, 冯书亮. 苏云金芽孢杆菌SHJ-5菌株杀虫晶体蛋白基因分析[J]. 华北农学报, 2011, 26(4): 194-197. doi: 10.7668/hbnxb.2011.04.034.

DU Li-xin, DONG Ming, WANG Rong-yan, MA Ming-ze, WANG Jin-yao, CAO Wei-ping, SONG Jian, FENG Shu-liang. Identification of cry Gene from a Novel Bacillus thuringiensis Isolate SHJ-5[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(4): 194-197. doi: 10.7668/hbnxb.2011.04.034.

使用本文

0
    /   /   推荐 /   导出引用

链接本文: http://www.hbnxb.net/CN/10.7668/hbnxb.2011.04.034

               http://www.hbnxb.net/CN/Y2011/V26/I4/194