Curtovirus
| Curtovirus | |
|---|---|
| Virus classification | |
| Group: | Group II (ssDNA) |
| Family: | Geminiviridae |
| Genus: | Curtovirus |
| Type Species | |
Curtovirus is a genus of viruses, in the family Geminiviridae. Dicotyledonous plants serve as natural hosts. There are currently three species in this genus including the type species Beet curly top virus. Diseases associated with this genus include: curly top disease.[1][2]
Taxonomy
Group: ssDNA
- Family: Geminiviridae
- Genus: Curtovirus
- Beet curly top virus
- Horseradish curly top virus
- Spinach severe curly top virus
Structure
Viruses in Curtovirus are non-enveloped, with icosahedral geometries, and T=1 symmetry. The diameter is around 22 nm, with a length of 38 nm. Genomes are circular and non-segmented, around 3.0kb in length.[1]
| Genus | Structure | Symmetry | Capsid | Genomic Arrangement | Genomic Segmentation |
|---|---|---|---|---|---|
| Curtovirus | Twinned Icosahedral | Incomplete T=1 | Non-Enveloped | Circular | Monopartite |
Life Cycle
Viral replication is nuclear. Entry into the host cell is achieved by penetration into the host cell. Replication follows the ssDNA rolling circle model. Dna templated transcription is the method of transcription. The virus exits the host cell by nuclear pore export, and tubule-guided viral movement. Dicotyledonous plants serve as the natural host. The virus is transmitted via a vector (beet leafhopper). Transmission routes are vector.[1]
| Genus | Host Details | Tissue Tropism | Entry Details | Release Details | Replication Site | Assembly Site | Transmission |
|---|---|---|---|---|---|---|---|
| Curtovirus | Dicotyledonous plants | Phloem-limited | Viral movement; mechanical inoculation | Budding | Nucleus | Nucleus | Beet leefhopper |
References
- 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
- 1 2 ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.