Ostreavirus is a genus of viruses in the order Herpesvirales, and one of only two genera in the family Malacoherpesviridae. Molluscs serve as natural hosts. There is only one species described in this genus, Ostreid herpesvirus 1 (OsHV-1), commonly known as oyster herpesvirus. A disease associated with this genus is sporadic episodes of high mortality among larvae and juveniles.[1][2]
| Ostreid herpesvirus 1 | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Duplodnaviria |
| Kingdom: | Heunggongvirae |
| Phylum: | Peploviricota |
| Class: | Herviviricetes |
| Order: | Herpesvirales |
| Family: | Malacoherpesviridae |
| Genus: | Ostreavirus |
| Species: | Ostreid herpesvirus 1
|
Acute viral necrosis virus, which affects scallops such as Chlamys farreri, appears to be a variant of Ostreid herpesvirus 1.[3]
Ostreid herpesvirus 1 was subsequently detected in the common octopus (Octopus vulgaris).[4]
Structure
editOstreavirus is enveloped, with spherical to pleomorphic geometry, and T=16 symmetry. The diameter is around 150-200 nm. The genome is linear and non-segmented, around 134kb in length.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Ostreavirus | Spherical pleomorphic | T=16 | Enveloped | Linear | Monopartite |
Life cycle
editViral replication is nuclear, and is lysogenic. DNA templated transcription is the method of transcription. Molluscs serve as the natural host.[1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Ostreavirus | Molluscs | B-lymphocytes | Glycoprotiens | Budding | Nucleus | Nucleus | Sex; saliva |
References
edit- ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
- ^ ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.
- ^ Ren W, Chen H, Renault T, Cai Y, Bai C, Wang C, Huang J (2013) Complete genome sequence of acute viral necrosis virus associated with massive mortality outbreaks in the Chinese scallop, Chlamys farreri" Virol J 10(1) 110
- ^ Prado-Alvarez, Maria; García-Fernández, Pablo; Faury, Nicole; Azevedo, Carlos; Morga, Benjamin; Gestal, Camino (1 July 2021). "First detection of OsHV-1 in the cephalopod Octopus vulgaris. Is the octopus a dead-end for OsHV-1?". Journal of Invertebrate Pathology. 183: 107553. doi:10.1016/j.jip.2021.107553. hdl:10261/239819. ISSN 0022-2011. PMID 33596434.
External links
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