Monoclonal antibody-based triple antibody sandwich-enzyme-linked immunosorbent assay and immunocapture reverse transcription-polymerase chain reaction for Odontoglossum ringspot virus detection

文献类型: 外文期刊

第一作者: Wu, Jianxiang

作者: Wu, Jianxiang;Meng, Chunmei;Shang, Haili;Hong, Jian;Zhou, Xueping;Rong, Song;Zhang, Chao

作者机构:

关键词: Orchid;Odontoglossum ringspot virus;Monoclonal antibody;Enzyme-linked immunosorbent assay;Immunocapture RT-PCR

期刊名称:JOURNAL OF VIROLOGICAL METHODS ( 影响因子:2.014; 五年影响因子:2.001 )

ISSN: 0166-0934

年卷期: 2011 年 171 卷 1 期

页码:

收录情况: SCI

摘要: Odontoglossum ringspot virus (ORSV) infects numerous commercially important orchids and causes significant losses worldwide. The coat protein (CP) gene of ORSV was cloned and expressed in Escherichia coli by using the pET-32a expression vector, and the expression of recombinant protein was confirmed by Western blotting using anti-ORSV antibodies. The recombinant protein was purified using Ni-NTA agarose, and the purified protein was used as an immunogen to produce monoclonal antibodies (MAbs) and polyclonal antibodies (PAbs). Five murine MAbs against ORSV CP were obtained. Among them, two MAbs (6B4 and 1D1) also reacted with TMV CP. The triple antibody sandwich enzyme-linked immunosorbent assay (TAS-ELISA) and immunocapture reverse transcription-polymerase chain reaction (IC-RT-PCR) methods using the MAb (8A5) were then developed for sensitive, specific, and rapid detection of ORSV. TAS-ELISA and IC-RT-PCR could detect ORSV in the infected leaf saps with dilutions of 1:10,240 and 1:81,920 (w/v, g mL(-1)), respectively. TAS-ELISA and IC-RT-PCR detections indicated that ORSV was prevalent in orchids in the Zhejiang Province of China. (C) 2010 Elsevier B.V. All rights reserved.

分类号: Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Virology

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