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中国农学通报 ›› 2015, Vol. 31 ›› Issue (20): 14-17.doi: 10.11924/j.issn.1000-6850.casb15020009

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

养蚕环境泥土中家蚕核型多角体病毒的PCR检测技术研究

唐芬芬1,张永红1,李 俊2,邵榆岚1,钟 健1,杨大平1,白兴荣1   

  1. (1云南省农业科学院蚕桑蜜蜂研究所,云南蒙自 661100;2红河学院生命科学与技术学院,云南蒙自 661100)
  • 收稿日期:2015-02-02 修回日期:2015-04-27 接受日期:2015-05-14 出版日期:2015-07-28 发布日期:2015-07-28
  • 通讯作者: 白兴荣
  • 基金资助:
    云南省现代农业蚕桑产业技术体系建设项目(2013KJ-TX006);国家自然科学基金项目“云南蚕区BmNPV流行株系鉴定及交互保护”(31260583)。

Detection of Bombyx mori nucleopolyhedrovirus from Rearing Soil Using PCR

Tang Fenfen1, Zhang Yonghong1, Li Jun2, Shao Yulan1, Zhong Jian1, Yang Daping1, Bai Xingrong1   

  1. (1Institute of Sericulture and Apiculture, Yunnan Academy of Agricultural Sciences, Mengzi Yunnan 661100; 2Colleage of Life Science and Technology, Hong He University, Mengzi Yunnan 661100)
  • Received:2015-02-02 Revised:2015-04-27 Accepted:2015-05-14 Online:2015-07-28 Published:2015-07-28

摘要: 家蚕核型多角体病(又称血液型脓病)是家蚕病毒病中危害最为严重的,为了更好的防控此病,以泥土作为环境因子代表,探讨了用PCR方法检测环境中病原BmNPV的可行性。研究结果表明,以BmNPV保守基因polyhedrin为靶标基因,设计特异性引物,所建立的PCR检测方法能够成功检测到泥土中BmNPV;对泥土中另外3种昆虫的NPV进行PCR检测,未发现特异性扩增,表明该方法具有良好的特异性;敏感性试验结果表明能检测环境泥土中BmNPV多角体的个数为8.3×105个,灵敏度是镜检的100倍。

关键词: 西部农户, 西部农户, 信贷排斥, 状况识别, 影响因素

Abstract: Bombyx mori nucleopolyhedrovirus disease is the most serious disease among silkworm virus diseases. In order to prevent and control this disease, using soil representing as environment factor, feasibility of detecting pathogen BmNPV in the environment by PCR was discussed. High conserved gene of polyhedrin of BmNPV was used to design specific primers and BmNPV in soil could be detected successfully by PCR. No specific amplification was found from the other three lepidopteran-specific nucleopolyhedrovirus in soil by PCR, indicating that this method was highly specific. Sensitivity test showed that viral polyhedra number was 8.3×105 in the soil detected by PCR, and was 100-fold of that detected by microscopy.