A sensitive and specific nanoparticle-assisted PCR assay for rapid detection of porcine parvovirus

文献类型： 外文期刊

第一作者： Cui, Y.

作者： Cui, Y.;Wang, Z.;Ma, X.;Liu, J.;Cui, S.;Cui, Y.;Cui, S.

作者机构：

关键词： nanoPCR;NS1 gene;PPV;sensitivity;specificity

期刊名称：LETTERS IN APPLIED MICROBIOLOGY （ 影响因子：2.858； 五年影响因子：2.776 ）

ISSN： 0266-8254

年卷期： 2014 年 58 卷 2 期

页码：

收录情况： SCI

摘要： A novel nanoparticle-assisted polymerase chain reaction (nanoPCR) assay to detect porcine parvovirus (PPV) is described here. Primers for this assay were designed based on the conserved region of the nonstructural protein 1 (NS1) gene of PPV, which encodes one of the nonstructural proteins. The sensitivity of the PPV nanoPCR assay was measured by using diluted recombinant plasmids in which the PPV NS1 gene had been inserted. The detection limit was 5.6 x 10(1) copies mu l(-1) for the PPV nanoPCR assay vs 5.6 x 10(3) copies mu l(-1) for conventional PCR assay. The results showed that the sensitivity of PPV nanoPCR assay was 100 times higher than that of conventional PCR assay. The PPV nanoPCR assay produced 142-bp product as expected when amplifying PPV DNA, while produced nothing when amplifying the DNA or cDNA of the following viruses: swine encephalomyocarditis virus, classical swine fever virus, porcine pseudorabies virus, porcine reproductive and respiratory syndrome virus, porcine teschovirus and porcine circovirus type II. PPV was detected in 108 of 109 clinical swine samples from Heilongjiang, Jilin and Henan provinces using the nanoPCR assay, and the results were confirmed by sequencing.

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