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Curtovirus

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Curtovirus
Virus classification Edit this classification
(unranked): Virus
Realm: Monodnaviria
Kingdom: Shotokuvirae
Phylum: Cressdnaviricota
Class: Repensiviricetes
Order: Geplafuvirales
Family: Geminiviridae
Genus: Curtovirus
Species

Curtovirus is a genus of ssDNA viruses, in the family Geminiviridae. Dicotyledonous plants serve as natural hosts. Curtoviruses are transmitted by leafhoppers. There are three species in this genus. Diseases associated with this genus include: Curly top disease.[1][2]

Structure

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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

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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

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  1. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 13 May 2021.
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