Becurtovirus
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''Becurtovirus'' 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 ...
, in the family ''
Geminiviridae ''Geminiviridae'' is a family of plant viruses that encode their genetic information on a circular genome of single-stranded (ss) DNA. There are 520 species in this family, assigned to 14 genera. Diseases associated with this family include: b ...
''. Dicotyledonous plants serve as natural hosts. There are three species in this genus.


Taxonomy

The following three species are assigned to the genus: *'' Beet curly top Iran virus'' *'' Exomis microphylla latent virus'' *'' Spinach curly top Arizona virus''


Structure

Viruses in ''Becurtovirus'' are non-enveloped, with icosahedral geometries, and T=1 symmetry. Genomes are circular and non-segmented, around 3.0kb in length.


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.


References


External links


Viralzone: Becurtovirus

ICTV
{{Taxonbar, from=Q18819210 Geminiviridae Virus genera