Home Acta Virologica 2005 Acta Virologica Vol.49, p.37-43, 2005

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Quarterly,
Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

Published in English

Impact Factor = 1.82

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Acta Virologica Vol.49, p.37-43, 2005

Title: COMPARISON OF THREE TECHNIQUES FOR DETECTION OF GRAPEVINE LEAFROLL-ASSOCIATED VIRUS 1
Author: P. KOMÍNEK, M. BRYXIOVÁ

Abstract: Thirty seven plants of grapevine from the Research Station of Viticulture, Karlątejn was examined for the presence of leafroll viruses. Grapevine leafroll-associated virus 1 (GLRaV-1) was detected in the grapevines plants tested using double-antibody sandwich ELISA (DAS-ELISA), RT-PCR and molecular hybridization with non-radioactive RNA probes. Both molecular methods were based on a detection of the GLRaV-1 heat-shock protein 70 (HSP70) gene and showed a higher sensitivity in the detection of GLRaV-1 compared to DAS-ELISA. RNA probes are considered more suitable for the GLRaV-1 detection, as their application can overcome potential minor sequence variability, which may cause the detection by RT-PCR less reliable, especially when the variability occurs in the genome region targeted by RT-PCR primers. Based on additional DAS-ELISA, a mixed infection of GLRaV-1 and Grapevine leafroll-associated virus 3 (GLRaV-3) occurred frequently, while a mixed infection of GLRaV-1 and Grapevine virus A (GVA) or Grapevine fleck virus (GFkV) or a multiple infection of GLRaV-1, GLRaV-3 and GFkV occurred rarely in the tested plants. A mixed infection of all the four viruses mentioned above was not observed.

Keywords: Grapevine leafroll-associated virus 1; ampelovirus; HSP 70 gene; RT-PCR; non-radioactive probe; DAS-ELISA
Year: 2005, Volume: 49, Issue: Page From: 37, Page To: 43



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