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烟草番茄环纹斑点病毒快速检测试纸条的研制及应用

Development and application of test strips for rapid detection of tomato zonate spot virus in tobacco

  • 摘要: 为实现田间烟叶中番茄环纹斑点病毒(tomato zonate spot virus,TZSV)的快速检测,以胶体金标记特异性识别番茄环纹斑点病毒的单克隆抗体,制备了番茄环纹斑点病毒胶体金快速检测试纸条。结果表明,该试纸条可在5 min内完成田间烟叶的检测,与烟草上常见的病毒无交叉反应。试纸条检测烟草病毒汁液的灵敏度可达到稀释10 000倍(质量体积比),田间发病烟叶的试纸条检测结果与RT-PCR检测结果吻合率大于96%。本研究中研制的番茄环纹斑点病毒快速检测试纸条具有操作简便、检测速度快、特异性强、灵敏度高、稳定性好等优点,适用于烟草田间番茄环纹斑点病毒的快速检测。

     

    Abstract: To rapidly detect tomato zonate spot virus (TZSV) in tobacco fields, the monoclonal antibody against TZSV was labeled with colloidal gold, and rapid test strips based on the technique for detecting TZSV were developed. The results showed that the detection could be completed within 5 minutes without cross-reacting with other common viruses in tobacco. The visual detection limit of the test strip for TZSV was 10 000-fold dilution of TZSV-infected tobacco leaf sap, and the agreement rate between the results obtained by the test strips and the RT-PCR test was over 96%. The developed test strip has the advantages of easy to use, fast detection, strong specificity, high sensitivity and good stability, and is thus suitable for rapid detection of TZSV in tobacco fields.

     

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