Development of Dot-ELISA and Colloidal Gold Immunochromatographic Strip for Rapid and Super-Sensitive Detection of Plum Pox Virus in Apricot Trees
文献类型: 外文期刊
第一作者: Guo, Mengmeng
作者: Guo, Mengmeng;Qi, Duo;Dong, Jinxi;Dong, Saiyu;Qian, Yajuan;Zhou, Xueping;Wu, Jianxiang;Dong, Jinxi;Wu, Jianxiang;Yang, Xiuling;Zhou, Xueping
作者机构:
关键词: apricot tree; plum pox virus; monoclonal antibody; dot-ELISA; colloidal gold immunochromatographic strip; RT-PCR
期刊名称:VIRUSES-BASEL ( 影响因子:4.7; 五年影响因子:4.8 )
ISSN:
年卷期: 2023 年 15 卷 1 期
页码:
收录情况: SCI
摘要: Plum pox virus (PPV) is a causal agent of the stone fruit tree sharka disease that often causes enormous economic losses. Due to its worldwide distribution and economic importance, rapid and reliable diagnostic technologies are becoming increasingly important for successful management of sharka disease. In this study, we have produced two super-sensitive and specific anti-PPV monoclonal antibodies (i.e., MAbs 13H4 and 4A11). Using these two MAbs, we have now developed a dot enzyme-linked immunosorbent assay (dot-ELISA) and a colloidal gold immunochromatographic strip (CGICS) assay. These two technologies can be used to quickly and reliably detect PPV. The results of these sensitivity assays confirmed that the dot-ELISA and CGICS assays could detect PPV infection in apricot tree leaf crude extracts diluted up to 1:5120 and 1:6400 (w/v), respectively. Further analyses using field-collected apricot tree leaf samples showed that the detection endpoint of the dot-ELISA was similar to 26 times above that obtained through RT-PCR, and the CGICS was as sensitive as RT-PCR. This present study is to broaden the knowledge about detection limits of dot-ELISA and CGICS for PPV monitoring. We consider that these newly developed dot-ELISA and CGICS are particularly useful for large scale PPV surveys in fields.
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