Ostreavirus
| Ostreavirus | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Systematics | ||||||||||||||||||
|
||||||||||||||||||
| Taxonomic characteristics | ||||||||||||||||||
|
||||||||||||||||||
| Scientific name | ||||||||||||||||||
| Ostreid herpesvirus 1 | ||||||||||||||||||
| Short name | ||||||||||||||||||
| OsHV-1 | ||||||||||||||||||
| Left | ||||||||||||||||||
|
The virus genus Ostreavirus currently consists of only one virus species, the herpes virus of the Pacific oyster ( Ostreides herpes virus 1 , OsHV-1). Previously, the species was assigned to the Herpesviridae family as an unclassified virus . The name of the genus is derived from the oyster family ( Ostreidae (from ancient Greek ὅστρεον, oyster)).
morphology
The enveloped virions of OsHV-1 have like all herpesviruses an icosahedral capsid ( T = 16 ), Pentone but can not be present in the capsid. The virions are round to irregular and about 150 to 200 nm in diameter.
Genome
The genome of OsHV-1 consists of a strand of linear, double-stranded DNA , the open reading frames of which are organized similarly to members of the genus simplex virus and cytomegalovirus in vertebrates. The genome is 207,439 bp in size.
Biological importance
The OsHV-1 was first isolated from the Pacific rock oyster ( Crassostrea gigas ). In addition, one finds the virus (or not yet classified subtypes) in the European flat oyster ( Ostrea edulis ), the great scallop ( Pecten maximus ) and also in Ruditapes decussatus and Ruditapes philippinarum , two species of cockles (Cardiidae). The host's larvae are already infected with the virus; the virus can lead to the death of the mussels or larvae. A transmission of OsHV-1 to vertebrates and thus also to humans is excluded due to the high host specificity of the herpes viruses.
Individual evidence
- ↑ a b c d e ICTV: ICTV Taxonomy history: Human alphaherpesvirus 1 , EC 51, Berlin, Germany, July 2019; Email ratification March 2020 (MSL # 35)
- ^ AJ Davison et al .: A novel class of herpesvirus with bivalve hosts . J. Gen. Virol. (2005) 86 (Pt 1): pp. 41-53 PMID 15604430
- ↑ PM da Silva et al .: Herpesvirus infection in European flat oysters Ostrea edulis obtained from brood stocks of various geographic origins and grown in Galicia (NW Spain) . Dis. Aquat. Organ. (2008) 24; 78 (3): pp. 181-188 PMID 18380216
- ↑ I. Arzul et al .: Evidence for interspecies transmission of oyster herpesvirus in marine bivalves . J. Gen. Virol. (2001) 82 (Pt 4): pp. 865-870 PMID 11257192