Viral gametocytic hypertrophy of the Pacific oyster Crassostrea gigas in Ireland

Published in DAO Vol. 83, No. 3. Online publication date: February 25, 2009 Print ISSN: 0177-5103; Online ISSN: 1616-1580 Copyright © 2009 Inter-Research. Full text available online: http://www.int-res.com/articles/dao2008/83/d083p181.pdf peer-reviewed Viral gametocytic hypertrophy (VGH) was detecte...

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Bibliographic Details
Published in:Diseases of Aquatic Organisms
Main Authors: Cheslett, D., McKiernan, F, Hickey, C, Collins, E
Format: Article in Journal/Newspaper
Language:English
Published: Inter Research 2009
Subjects:
Crassostrea gigas
Viral gametocytic hypertrophy
Papillomaviridae
Polyomaviridae
Pacific oyster
Gonad
Canada
Pacific
Online Access:http://hdl.handle.net/10793/443
https://doi.org/10.3354/dao02020
Description
Summary:Published in DAO Vol. 83, No. 3. Online publication date: February 25, 2009 Print ISSN: 0177-5103; Online ISSN: 1616-1580 Copyright © 2009 Inter-Research. Full text available online: http://www.int-res.com/articles/dao2008/83/d083p181.pdf peer-reviewed Viral gametocytic hypertrophy (VGH) was detected during an investigation of mortalities in Pacific oysters Crassostrea gigas from 2 separate Irish production sites. The basophilic inclusions were observed in the gonad tissue of oysters sampled in August and October 2007. The oysters involved did not show any macroscopic disease signs. Transmission electron microscopy demonstrated the presence of viral particles in these intranuclear inclusions. The particles were small, non-enveloped, icosahedral and approximately 50 nm in diameter and thus had characteristics similar to the Papillomaviridae and Polyomaviridae families. No host defence reaction was observed. The viral particles described here appear to be similar to those described in C. virginica from the USA and Canada and to those described in C. gigas from Korea and France.

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