当前位置: X-MOL 学术 › Phytopathology Research › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Development of a recombinase polymerase amplification combined with lateral flow dipstick assay for rapid and sensitive detection of bean common mosaic virus
Phytopathology Research Pub Date : 2021-02-02 , DOI: 10.1186/s42483-021-00080-3
Jiachao Qin , Zhe Yin , Danyu Shen , Huatao Chen , Xin Chen , Xiaoyan Cui , Xuehao Chen

Bean common mosaic virus (BCMV) is one of the most widespread and damaging viruses of cultivated legumes in the world. In addition to serious yield reduction and germplasm decline, BCMV infection also makes legumes more vulnerable to other pathogens. Early diagnosis of the virus is particularly important in limiting its spread. Recombinase polymerase amplification (RPA) is a novel isothermic amplification technology. The whole reaction can be done outside the laboratory environment after the nucleic acid sample is obtained. In this study, we established a rapid and sensitive RPA combined with the lateral flow dipstick (LFD) assay for detection of BCMV, based on the conserved BCMV coat protein (CP) gene sequence. Specific primers and a probe were designed, which amplify ~ 150 bp CP fragments from BCMV-infected samples under a constant temperature of 37 °C for 20 min. The end-labeled amplification products were detected by high-affinity LFD within 5 min. Sensitivity of this RPA-LFD assay was 1000 times greater than that of the conventional polymerase chain reaction (PCR) assay. Furthermore, when the primers/probe were used against related potyviruses including soybean mosaic virus (SMV), bean yellow mosaic virus (BYMV), and turnip mosaic virus (TuMV), the three potyviruses were not detected, indicating that the assay was BCMV species-specific. The RPA-LFD assay was also successfully applied for the detection of seed-borne BCMV in beans. The RPA-LFD assay has great potential application in the rapid diagnosis of BCMV in the field.



中文翻译:

重组酶聚合酶扩增技术与侧向量油尺检测相结合,可快速灵敏地检测豆类普通花叶病毒

豆类普通花叶病毒(BCMV)是世界上最广泛和最具破坏力的栽培豆类病毒之一。除了严重降低产量和减少种质外,BCMV感染还使豆类更易受其他病原体的侵害。病毒的早期诊断对于限制其传播特别重要。重组酶聚合酶扩增(RPA)是一种新型的等温扩增技术。在获得核酸样品后,整个反应可以在实验室环境之外进行。在这项研究中,我们基于保守的BCMV外壳蛋白(CP)基因序列,建立了一种快速灵敏的RPA与侧向量油尺(LFD)分析相结合的方法来检测BCMV。设计了特异性引物和探针,在37°C的恒温条件下,从BCMV感染的样品中扩增出约150 bp的CP片段,时间为20分钟。在5分钟内通过高亲和力LFD检测到末端标记的扩增产物。这种RPA-LFD分析的灵敏度是传统聚合酶链反应(PCR)分析的1000倍。此外,当将引物/探针用于相关大豆病毒(包括大豆花叶病毒(SMV),豆黄花叶病毒(BYMV)和芜菁花叶病毒(TuMV))时,未检测到这三种马铃薯病毒,表明该测定是BCMV种类-具体的。RPA-LFD测定法还成功地用于检测豆类中的种子传播的BCMV。RPA-LFD检测在该领域的BCMV快速诊断中具有巨大的潜在应用价值。在5分钟内通过高亲和力LFD检测到末端标记的扩增产物。这种RPA-LFD分析的灵敏度是传统聚合酶链反应(PCR)分析的1000倍。此外,当将引物/探针用于相关大豆病毒(包括大豆花叶病毒(SMV),豆黄花叶病毒(BYMV)和芜菁花叶病毒(TuMV))时,未检测到这三种马铃薯病毒,表明该测定是BCMV种类-具体的。RPA-LFD测定法还成功地用于检测豆类中的种子传播的BCMV。RPA-LFD检测在该领域的BCMV快速诊断中具有巨大的潜在应用价值。在5分钟内通过高亲和力LFD检测到末端标记的扩增产物。这种RPA-LFD分析的灵敏度是传统聚合酶链反应(PCR)分析的1000倍。此外,当将引物/探针用于相关大豆病毒(包括大豆花叶病毒(SMV),豆黄花叶病毒(BYMV)和芜菁花叶病毒(TuMV))时,未检测到这三种马铃薯病毒,表明该测定是BCMV种类-具体的。RPA-LFD测定法还成功地用于检测豆类中的种子传播的BCMV。RPA-LFD检测在该领域的BCMV快速诊断中具有巨大的潜在应用价值。当将引物/探针用于相关大豆病毒(包括大豆花叶病毒(SMV),豆黄花叶病毒(BYMV)和芜菁花叶病毒(TuMV))时,未检测到这三种马铃薯病毒,表明该测定是针对BCMV物种的。RPA-LFD测定法还成功地用于检测豆类中的种子传播的BCMV。RPA-LFD检测在该领域的BCMV快速诊断中具有巨大的潜在应用价值。当将引物/探针用于相关大豆病毒(包括大豆花叶病毒(SMV),豆黄花叶病毒(BYMV)和芜菁花叶病毒(TuMV))时,未检测到这三种马铃薯病毒,表明该测定是针对BCMV物种的。RPA-LFD测定法还成功地用于检测豆类中的种子传播的BCMV。RPA-LFD检测在该领域的BCMV快速诊断中具有巨大的潜在应用价值。

更新日期:2021-03-17
down
wechat
bug