›› 2010, Vol. 37 ›› Issue (6): 71-74.

• 生物技术 • 上一篇    下一篇

猪瘟病毒RT-LAMP快速检测方法的建立

刘中勇1,曾小娜2,朱道中1,房红莹2,蒋启荣3,吴志强2,罗满林2   

  1. (1. 广东出入境检验检疫局, 广州 510623; 2.华南农业大学兽医学院, 广州 510642;3.广东省动物防疫监督总所, 广州 510230)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-06-20 发布日期:2010-06-20
  • 通讯作者: 罗满林

Establishment of Rapid Reverse Transcriptase Loop-mediated〖HJ〗Isothermal Amplification for Detection of CSFV

LIU Zhong-yong1,ZENG Xiao-na2, ZHU Dao-zhong1,FANG Hong-ying2, 
JIANG Qi-rong3, WU Zhi-qiang2,LUO Man-lin2
  

  1. (1.Guangdong Entry-Exit Inspection and Quarantine Bureau,Guangzhou 510623,China; 2.College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642,China; 3.Animal Epidemic Prevention Supervisory Institute of Guangdong Province,Guangzhou 510230,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-06-20 Published:2010-06-20
  • Contact: LUO Man-lin

摘要:

本研究设计了4条针对猪瘟病毒6个位点的特异性引物,建立了一种灵敏、特异、快速的猪瘟病毒体外等温扩增(RT-LAMP)检测方法,所建立的方法能够特异地检测出猪瘟病毒(classical swine fever virus,CSFV)的存在,检测PRV、PRRSV、PCV-2等病毒均为阴性;灵敏度高,所建立的CSFV-RT-LAMP方法灵敏度为10-5,总RNA的检测阈值约为1 pg;反应快速,整个扩增反应可在1 h内完成;操作简单,不需要PCR仪等复杂的仪器,结果可经肉眼观察及电泳检测。本试验为猪瘟的现场快速检测提供更加简便、快速的方法,可以满足基层检疫的需要。

关键词: 猪瘟病毒; 环介导等温扩增技术

Abstract: The reverse transcription loop-mediated isothermal amplification (RT-LAMP) had been built as a rapid and exact detection method which could play an important role in the prevention and control of Newcastle disease. Two pairs of specific primers were designed based on the sequences of SCFV E gene available in GenBank, targeting the 6 distinct sequences of E gene. A reverse transcriptase loop-mediated isothermal amplification(RT-LAMP) for the rapid detection of CSFV was developed by using the specific primers. The results showed that the detection limit of the CSFV-RT-LAMP method was 10-5. The amplification could be finished within 1 h with good specificity and high sensitivity. And the developed method can meet the demands of field detection of CSFV infection.

Key words: CSFV; reverse transcriptase loop-mediated isothermal amplification(RT-LAMP)

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