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http://dx.doi.org/10.5423/RPD.2006.12.2.139

Convenient Nucleic Acid Detection for Tomato spotted wilt virus: Virion Captured/RT-PCR (VC/RT-PCR)  

Cho Jeom-Deog (National Horticultural Research Institute, Rural Development Administration)
Kim Jeong-Soo (National Horticultural Research Institute, Rural Development Administration)
Kim Hyun-Ran (National Horticultural Research Institute, Rural Development Administration)
Chung Bong-Nam (National Horticultural Research Institute, Rural Development Administration)
Ryu Ki-Hyun (Seoul Women's University)
Publication Information
Research in Plant Disease / v.12, no.2, 2006 , pp. 139-143 More about this Journal
Abstract
Virion captured reverse transcription polymerase chain reaction (VC/RT-PCR) could detect plant virus quickly and accurately. In the VC/RT-PCR, no antibody is needed unlike immuno-captured RT-PCR (IC/RT-PCR) which had been improved method of RT-PCR for plant viruses, and virus nucleic acids can be obtained easily within 30minutes by property of polypropylene PCR tube which is hold and immobilized viral particles on its surface. For the virion capture of Tomato spotted wilt virus (TSWV), the extraction buffer was tested. The optimum macerating buffer for TSWV was 0.01M potassium phosphate buffer, pH 7.0, containing 0.5% sodium sulfite. The viral crude sap was incubated for 30 min at $4^{\circ}C$. The virions in the PCR tubes were washed two times with 0.01M PBS containing 0.05% Tween-20. The washed virions were treated at $95^{\circ}C$ immediately for 1 min containing RNase free water and chilled quickly in the ice. Disclosed virions' RNAs by heat treatment were used for RT-PCR. Dilution end point of $10^{-5}$ from plant's crude sap infected with TSWV showed relatively higher detection sensitivity for VC/RT-PCR. During multiple detection using two or more primers, interference was arisen by interactions between primer-primer and plant species. The result of multiplex RT-PCR was influenced by combinations of primers and the kind of plant, and the optimum extraction buffer for the multiplex detection by VC/RT-PCR should be developed.
Keywords
Extraction buffer; Tomato spotted wilt virus (TSWV); Virion captured(VC)/RT-PCR;
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