Caulimoviridae

Caulimoviridae is a family of viruses. Host organisms for these viruses are plants. There are currently 86 species in this family, divided among 6 genera. Diseases associated with this family include: symptoms range from symptomless infection to severe systemic necrosis.

Taxonomy

The family Caulimoviridae is divided into six genera:

• Badnavirus
• Caulimovirus
• Cavemovirus
• Petuvirus
• Rosadnavirus
• Soyavirus

Structure

Viruses in Caulimoviridae are non-enveloped, with icosahedral geometries, and T=7 symmetry. The diameter is around 50 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 dsDNA(RT) replication 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 borne, and contact.

References

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External links

• Virus Taxonomy Online
• NCBI Taxonomy Browser

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