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 segmentationSpiromicrovirusIcosahedralT=1Non-envelopedCircularMonopartite
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 TransmissionSpiromicrovirusBacteria: spiroplasmaNonePilus adsorptionLysisCytoplasmCytoplasmPilus
References
External links Viralzone: Spiromicrovirus ICTV