First report of ictavirus acipenseridallo2 (AciHV-2) in Danube sturgeons Acipenser gueldenstaedtii in Austria.

IF 1.1 4区 农林科学 Q3 FISHERIES Diseases of aquatic organisms Pub Date : 2025-02-06 DOI:10.3354/dao03837
Hella Schwegler, Laurent Bigarré, Karoline Lipnik, Nora Dinhopl, Astrid Holzer, Eva Lewisch
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Abstract

Newly stocked Danube sturgeons Acipenser gueldenstaedtii developed cutaneous lesions and nearly 100% mortality over the course of 2 mo after introduction into an Austrian fish farm. Necropsy revealed cutaneous plaques and hemorrhages, and histological findings in skin, gills, spleen and kidney tissues showed cell-nucleus alterations consistent with infection by a herpesvirus. The presence of a herpesvirus was demonstrated by the visualization of numerous typical viral particles in different tissues by electron microscopy. A newly developed conventional PCR protocol, targeting a fragment of the viral DNA polymerase gene, further confirmed the presence of a virus related to the species Ictavirus acipenseridallo2 (formerly Acipenserid herpesvirus-2; AciHV-2) in the diseased fish. Amplification products were sequenced and showed 100% identity to the Siberian sturgeon herpesvirus (SbSHV) strain. This is the first report of herpesvirus detection in sturgeon in Austria and of SbSHV, a strain of AciHV-2, in Danube sturgeons.

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来源期刊
Diseases of aquatic organisms
Diseases of aquatic organisms 农林科学-兽医学
CiteScore
3.10
自引率
0.00%
发文量
53
审稿时长
8-16 weeks
期刊介绍: DAO publishes Research Articles, Reviews, and Notes, as well as Comments/Reply Comments (for details see DAO 48:161), Theme Sections and Opinion Pieces. For details consult the Guidelines for Authors. Papers may cover all forms of life - animals, plants and microorganisms - in marine, limnetic and brackish habitats. DAO''s scope includes any research focusing on diseases in aquatic organisms, specifically: -Diseases caused by coexisting organisms, e.g. viruses, bacteria, fungi, protistans, metazoans; characterization of pathogens -Diseases caused by abiotic factors (critical intensities of environmental properties, including pollution)- Diseases due to internal circumstances (innate, idiopathic, genetic)- Diseases due to proliferative disorders (neoplasms)- Disease diagnosis, treatment and prevention- Molecular aspects of diseases- Nutritional disorders- Stress and physical injuries- Epidemiology/epizootiology- Parasitology- Toxicology- Diseases of aquatic organisms affecting human health and well-being (with the focus on the aquatic organism)- Diseases as indicators of humanity''s detrimental impact on nature- Genomics, proteomics and metabolomics of disease- Immunology and disease prevention- Animal welfare- Zoonosis
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