''Caulimovirus'' 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 1 ...
, in the family ''
Caulimoviridae
''Caulimoviridae'' is a family of viruses infecting plants. There are 94 species in this family, assigned to 11 genera. Viruses belonging to the family ''Caulimoviridae'' are termed double-stranded DNA (dsDNA) reverse-transcribing viruses (or pa ...
'' order ''
Ortervirales
''Ortervirales'' is an order that contains all accepted species of single-stranded RNA viruses that replicate through a DNA intermediate (Group VI) and all accepted species of double-stranded DNA viruses (except '' Hepadnaviridae'') that replic ...
''. Plants serve as natural hosts. There are 12 species in this genus. Diseases associated with this genus include: vein-clearing or banding mosaic.
Taxonomy
The genus contains the following species:
*''
Angelica bushy stunt virus''
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Atractylodes mild mottle virus''
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Carnation etched ring virus''
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Cauliflower mosaic virus
Cauliflower mosaic virus (CaMV) is a member of the genus ''Caulimovirus'', one of the six genera in the family ''Caulimoviridae'', which are pararetroviruses that infect plants. Pararetroviruses replicate through reverse transcription just like ...
''
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Dahlia mosaic virus''
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Figwort mosaic virus''
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Horseradish latent virus''
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Lamium leaf distortion virus''
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Mirabilis mosaic virus''
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Soybean Putnam virus''
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Strawberry vein banding virus''
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Thistle mottle virus''
Structure
Viruses in ''Caulimovirus'' are non-enveloped, with icosahedral geometries, and T=7, T=7 symmetry. The diameter is around 50 nm. Genomes are circular and non-segmented. The genome codes for 6 to 7 proteins.
Life cycle
Viral replication is nuclear/cytoplasmic. Entry into the host cell is achieved by attachment of the viral proteins to host receptors, which mediates endocytosis. Replication follows the dsDNA-RT replication model. DNA-templated transcription, specifically dsDNA-RT transcription is the method of transcription. Translation takes place by
ribosomal shunting Ribosome shunting is a mechanism of translation initiation in which ribosomes bypass, or "shunt over", parts of the 5' untranslated region to reach the start codon. However, a benefit of ribosomal shunting is that it can translate backwards allowi ...
. The virus exits the host cell by nuclear pore export, and tubule-guided viral movement. Plants serve as the natural host. The virus is transmitted via a vector (aphid insects). Transmission routes are mechanical.
References
External links
Viralzone: CaulimovirusICTV
{{Taxonbar, from=Q16913554
Caulimoviridae
Virus genera