Labyrnavirus is a monotypic genus of viruses in the order Picornavirales. Protist and labyrinthulomycetes serve as natural hosts, notably Aurantiochytrium. There is only one species in this genus: Aurantiochytrium single-stranded RNA virus 01.[1][2]
| Aurantiochytrium single-stranded RNA virus 01 | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Pisuviricota |
| Class: | Pisoniviricetes |
| Order: | Picornavirales |
| Family: | Marnaviridae |
| Genus: | Labyrnavirus |
| Species: | Aurantiochytrium single-stranded RNA virus 01
|
Structure
editViruses in Labyrnavirus are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 25 nm. Genomes are linear and non-segmented, around 9kb in length. The genome has three open reading frames.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Labyrnavirus | Icosahedral | Pseudo T=3 | Non-enveloped | Linear | Monopartite |
Life cycle
editViral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Protist and labyrinthulomycetes serve as the natural host.[1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Labyrnavirus | Protist, Labyrinthulomycetes | None | Unknown | Lysis | Cytoplasm | Cytoplasm | Unknown |
References
edit- ^ a b c "Viral Zone". ExPASy. Retrieved 13 August 2015.
- ^ ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.