Globuloviridae is a family of hyperthermophilic archaeal viruses. Crenarchaea of the genera Pyrobaculum and Thermoproteus (both in Thermoproteaceae) serve as natural hosts. There are four species in this family, assigned to a single genus, Alphaglobulovirus.
Taxonomy The family contains one genus which contains four species: Alphaglobulovirus Alphaglobulovirus cinderense, Thermoproteus tenax spherical virus 1 Alphaglobulovirus obsidianense, Pyrobaculum spherical virus Alphaglobulovirus pozzuoliense, Pyrobaculum spherical virus 2 Alphaglobulovirus sileriense, Thermoproteus spherical piliferous virus 1
Structure Virions in the Globuloviridae are spherical and enveloped. The diameter is around 100 nm.
Genomes are linear dsDNA and non-segmented, around 20–30kb in length.
Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentationAlphaglobulovirusSphericalEnvelopedLinearMonopartite
Life cycle Viral replication is cytoplasmic. DNA-templated transcription is the method of transcription. Pyrobaculum and Thermoproteus archaea serve as the natural host. Transmission routes are passive diffusion.
Genus Host details Tissue tropism Entry details Release details Replication site Assembly site TransmissionAlphaglobulovirusPyrobaculum and Thermoproteus archaeaNoneInjectionBuddingCytoplasmCytoplasmPassive diffusion
References
External links ICTV Report: Globuloviridae Viralzone: Globuloviridae