Spiromicrovirus
Spiromicrovirus is a genus of viruses, in the family Microviridae, in the subfamily Gokushovirinae. Spiroplasma bacteria serve as natural hosts. There is currently only one species in this genus: the type species Spiroplasma phage 4.[1][2]
Spiromicrovirus | |
---|---|
Virus classification | |
(unranked): | Virus |
Realm: | Monodnaviria |
Kingdom: | Sangervirae |
Phylum: | Phixviricota |
Class: | Malgrandaviricetes |
Order: | Petitvirales |
Family: | Microviridae |
Subfamily: | Gokushovirinae |
Genus: | Spiromicrovirus |
Type species | |
Spiroplasma phage 4 |
Taxonomy
Group: ssDNA
- Family: Microviridae
- Sub-Family: Gokushovirinae
- Genus: Spiromicrovirus
- Spiroplasma phage 4
Structure
Viruses in Spiromicrovirus are non-enveloped, with icosahedral and round geometries, and T=1 symmetry. The diameter is around 30 nm. Genomes are circular, around 6.1kb in length.[1]
Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
---|---|---|---|---|---|
Spiromicrovirus | Icosahedral | T=1 | Non-enveloped | Circular | Monopartite |
Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by pilus-mediated adsorption into the host cell. Replication follows the ssDNA rolling circle model. DNA-templated transcription is the method of transcription. The virus exits the host cell by bacteria lysis. Spiroplasma bacteria serve as the natural host.[1]
Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
---|---|---|---|---|---|---|---|
Spiromicrovirus | Bacteria: spiroplasma | None | Pilus adsorption | Lysis | Cytoplasm | Cytoplasm | Pilus |
References
- "Viral Zone". ExPASy. Retrieved 15 June 2015.
- ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.