Visualization of viruses in tumors of rainbow smelt Osmerus mordax

Morrison, Carol M.; Leggiadro, Cynthia; Martell, D. J.

doi:10.3354/dao026019

Cited by 17 publications

(7 citation statements)

References 8 publications

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“…A papillomatosis of European smelt ( Osmerus eperlanus ) reported in the Baltic Sea and the USA was shown to be of herpesvirus origin (Anders, 1989b; Morrison et al., 1996). Similar herpesvirus infection associated with epithelial skin tumours occurred in rainbow smelt ( Osmerus mordax ) in several lakes in the USA during spawning time, with a prevalence of 30% (Burke et al., 1989; Herman et al., 1997).…”

Section: Double‐stranded Dna Virusesmentioning

confidence: 99%

Viruses of Lower Vertebrates

Eßbauer¹,

Ahne

2001

Journal of Veterinary Medicine, Series B

108

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Viruses of lower vertebrates recently became a field of interest to the public due to increasing epizootics and economic losses of poikilothermic animals. These were reported worldwide from both wildlife and collections of aquatic poikilothermic animals. Several RNA and DNA viruses infecting fish, amphibians and reptiles have been studied intensively during the last 20 years. Many of these viruses induce diseases resulting in important economic losses of lower vertebrates, especially in fish aquaculture. In addition, some of the DNA viruses seem to be emerging pathogens involved in the worldwide decline in wildlife. Irido-, herpes- and polyomavirus infections may be involved in the reduction in the numbers of endangered amphibian and reptile species. In this context the knowledge of several important RNA viruses such as orthomyxo-, paramyxo-, rhabdo-, retro-, corona-, calici-, toga-, picorna-, noda-, reo- and birnaviruses, and DNA viruses such as parvo-, irido-, herpes-, adeno-, polyoma- and poxviruses, is described in this review.

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Section: Double‐stranded Dna Virusesmentioning

confidence: 99%

Viruses of Lower Vertebrates

Eßbauer¹,

Ahne

2001

Journal of Veterinary Medicine, Series B

108

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“…Currently, this family consists of 4 genera: Batrachovirus, which includes viruses infecting frogs; Cyprinivirus, consisting of viruses that infect carp and eels; Ictalurivirus, with viruses that infect catfish and sturgeon; and lastly, Salmonivirus, representing herpesviruses that infect salmonids , ICTV 2012. However, it is noteworthy that in addition to the viruses represented by these 4 genera, members of the Alloherpesviridae family have been detected in Siberian sturgeon Acipenser baerii (Doszpoly et al 2017), walleye (Kelly et al 1983), northern pike Esox lucius (Yamamoto et al 1984), turbot Scophthalmus maximus (Hellberg et al 2002), rainbow and European smelt Osmerus mordax and O. eperlanus (Morrison et al 1996, Jakob et al 2010, pilchard Sardinops sagax neopilchardus (Crockford et al 2005), Pacific and Atlantic cod Gadus macrocephalus and G. morhua (McArn et al 1978, McCain et al 1979, Marcos-Lopez et al 2012, Atlantic salmon Salmo salar (Doszpoly et al 2013) and lake trout Salvelinus namaycush (Glenney et al 2016) that have yet to be assigned taxonomic position by the ICTV (see Hanson et al 2011 andEngelsma 2012 for overview).…”

Section: Introductionmentioning

confidence: 99%

An alloherpesvirus infection of European perch Perca fluviatilis in Finland

Garver¹,

Leskisenoja²,

MacRae³

et al. 2018

Dis. Aquat. Org.

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The order Herpesvirales includes viruses that infect aquatic and terrestrial vertebrates and several aquatic invertebrates (i.e. mollusks), and share the commonality of possessing a double-stranded DNA core surrounded by an icosahedral capsid. Herpesviruses of the family Alloherpesviridae that infect fish and amphibians, including channel catfish virus and koi herpesvirus, negatively impact aquaculture. Here, we describe a novel herpesvirus infection of wild European perch from lakes in Finland. Infected fish exhibited white nodules on the skin and fins, typically in the spring when prevalence reached nearly 40% in one of the sampled lakes. Transmission electron microscopic examination of affected tissues revealed abundant nuclear and cytoplasmic virus particles displaying herpesvirus morphology. Degenerate PCR targeting a conserved region of the DNA polymerase gene of large DNA viruses amplified a 520 bp product in 5 of 5 affected perch skin samples tested. Phylogenetic analysis of concatenated partial DNA polymerase and terminase (exon 2) gene sequences produced a well-supported tree grouping the European perch herpesvirus with alloherpesviruses infecting acipenserid, esocid, ictalurid, and salmonid fishes. The phenetic analysis of the European perch herpesvirus partial DNA polymerase and terminase nucleotide gene sequences ranged from 34.6 to 63.9% and 39.6 to 59.6% to other alloherpesviruses, respectively. These data support the European perch herpesvirus as a new alloherpesvirus, and we propose the formal species designation of Percid herpesvirus 2 (PeHV2) to be considered for approval by the International Committee on Taxonomy of Viruses.

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“…Papillomatosis has been associated with herpesviruses in several fish species including koi carp Cyprinus carpio, smelt Osmerus eperlanus and rainbow smelt O. mordax (e.g. Hedrick et al 1990, Lee & Whitfield 1992, Sano et al 1993, Morrison et al 1996, but not all studies have been able to demonstrate an association with viruses (e.g. Lamas et al 1990) and some have identified papillomaviruses (Edwards et al 1977).…”

Section: Introductionmentioning

confidence: 99%