Spiromicrovirus
| Spiromicrovirus | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Realm: | Volvereviria |
| Kingdom: | Sangervirae |
| Phylum: | Phixviricota |
| Class: | Microviricetes |
| Order: | Gokushovirales |
| Family: | Alphagokushoviridae |
| Genus: | Spiromicrovirus |
Spiromicrovirus is a genus of viruses, in the family Alphagokushoviridae. Spiroplasma bacteria serve as natural hosts. There is only one species in this genus: Spiromicrovirus SpV4.
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.
| 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.
| 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
- 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
- ↑ "Virus Taxonomy: 2025 Release". International Committee on Taxonomy of Viruses. Retrieved 23 March 2026.