''Trichomonasvirus'' is a genus of
viruses
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
Since Dmitri Ivanovsky's ...
, in the family ''
Totiviridae
''Totiviridae'' is a family of double-stranded RNA viruses. Giardia lamblia, leishmania, trichomonas vaginalis, and fungi serve as natural hosts. The name of the group derives from Latin ''toti'' which means undivided or whole. There are 28 spec ...
''. The protozoan parasite ''
Trichomonas vaginalis
''Trichomonas vaginalis'' is an anaerobic, flagellated protozoan parasite and the causative agent of a sexually transmitted disease called trichomoniasis. It is the most common pathogenic protozoan that infects humans in industrialized countri ...
'' serves as the natural host. There are four species in this genus.
Taxonomy
The following four species are assigned to the genus:
* ''
Trichomonas vaginalis virus 1''
* ''
Trichomonas vaginalis virus 2''
* ''
Trichomonas vaginalis virus 3''
* ''
Trichomonas vaginalis virus 4''
Structure
Viruses in ''Trichomonasvirus'' are non-enveloped, with icosahedral geometries, and T=2 symmetry. The diameter is around 36 nm. Genomes are linear and non-segmented, around 4.6-4.9kb in length. The genome has 2 open reading frames.
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Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment to host receptors, which mediates endocytosis. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. Protozoan parasite trichomonas vaginalis serve as the natural host.[
]
References
External links
Viralzone: Trichomonasvirus
ICTV
{{Taxonbar, from=Q18822384
Totiviridae
Virus genera