Journal article
Epizootic mortality in the pilchard Sardinops sagax neopilchardus in Australia and New Zealand in 1995. II. Identification of a herpesvirus within the gill epithelium
Diseases of Aquatic Organisms, Vol.28(1), pp.17-29
1997
Abstract
Mass mortalities, among pilchards Sardinops sagax neopilchardus occurred around Australia and New Zealand from March to September 1995 The mortalities spread rapidly both with and against currents and usually affected fish longer than 11 cm. Examination showed mortalities to be associated with the presence of replicating herpesvirus in the gill epithelium; herpesviruses were not observed within equivalent cells of unaffected fish collected ahead of the mortality front By negative contrast ele ctron microscopy the virus was demonstrated to possess a 96 nm icosahedral capsid containing 162 capsomers. Many virions were enveloped and possessed surface projections. The nuclei of infected epithelial cells contained nuclcoids, capsids and nucleocapsids which were released from the nucleus into the surrounding cytoplasm following degeneration of the nuclear membrane. Within the cytoplasm, the capsids and nucleocapsids acquired a tegument and subsequently were enveloped by passing into smooth-surfaced vesicles or by budding from the plasma membrane. Release of viruses from the cells was in the main, associated with lysis of infected gill epithelial cells. The morphology of the virus and ultrastructure of infected cells suggest that this virus belongs to the family Herpesviridae. The presence of a replicating herpesvirus within the gill epithelium is discussed in context with the epizootic.
Details
- Title
- Epizootic mortality in the pilchard Sardinops sagax neopilchardus in Australia and New Zealand in 1995. II. Identification of a herpesvirus within the gill epithelium
- Authors/Creators
- A.D. Hyatt (Author/Creator)P.M. Hine (Author/Creator)J.B. Jones (Author/Creator)R.J. Whittington (Author/Creator)C. Kearns (Author/Creator)T.G. Wise (Author/Creator)M.S. Crane (Author/Creator)
- Publication Details
- Diseases of Aquatic Organisms, Vol.28(1), pp.17-29
- Publisher
- Inter-Research Science Publishing
- Identifiers
- 991005540725007891
- Copyright
- © 1997 Inter-Research
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.104 Virology - General
- 1.104.1861 Fish Viral Diseases
- Web Of Science research areas
- Fisheries
- Veterinary Sciences
- ESI research areas
- Plant & Animal Science