Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (2): 560-564.doi: 10.11843/j.issn.0366-6964.2021.02.029

• RESEARCH NOTES • Previous Articles    

Establishment of a Loop-Mediated Isothermal Amplification Method for Rapid Detection of Salmonella Indiana

GONG Jiansen1, XU Jingxiao1, FU Lixia2, ZHANG Di1, DONG Yongyi3, XU Bu1, DOU Xinhong1*   

  1. 1. Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, China;
    2. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
    3. Jiangsu Animal Disease Prevention and Control Center, Nanjing 210036, China
  • Received:2020-07-20 Online:2021-02-23 Published:2021-02-24

Abstract: The objective of the present study was to establish a molecular method for rapid detection of Salmonella Indiana and overcome the shortcomings of traditional detection method rely on selective isolation, biochemical identification and serological typing. In this study, comparative genomics was used to identify the serospecific gene for S. Indiana, and a set of primers for LAMP was further designed. The specific molecular detection method for S. Indiana was established by optimizing the reaction conditions. The results showed that the method was specific and time-consuming, and the detection limit was 59 copies per reaction. The results of this method are consistent with GB4789.4—2016, and can also be used for the detection of self-coagulating bacteria. The detection method established in this study can rapid detection of S. Indiana, and will play an important role in the clinical diagnosis of this pathogen.

Key words: Salmonella Indiana, loop-mediated isothermal amplification, comparative genomics, detection

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