Caulimovirus

Caulimovirus is a genus of viruses, in the family Caulimoviridae. There are 12 species in this genus. Diseases associated with this genus include: symptoms such as chlorotic local lesions, necrosis, and systemic mottling and necrosis.

Taxonomy

The following species are assigned to the genus:

• Cauliflower mosaic virus
• Carnation etched ring virus
• Figwort mosaic virus
• Horseradish latent virus
• Lamium leaf distortion associated virus
• Mirabilis mosaic virus
• Peanut chlorotic streak virus
• Petunia vein clearing virus
• Soybean chlorotic mottle virus
• Strawberry vein banding virus
• Sweet potato collusive virus
• Tobacco vein clearing virus

Structure

Viruses in Caulimovirus are non-enveloped, with icosahedral geometries, and T=7 symmetry. The diameter is around 52 nm. Genomes are circular and non-segmented, around 8kb in length.

Life Cycle

Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the DNA strand displacement model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear pore export, and tubule-guided viral movement. Plants serve as the natural host. Transmission routes are mechanical, seed, and contact.

References

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External links

• Caulimovirus at NCBI Taxonomy Browser
• ICTVdB - The Universal Virus Database, version 4. http://ictvdb.bio2.cnr.it/ICTVdB/00.019.0.01.htm

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