''Torradovirus'' 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. Viruses are found in almo ...

in the order ''

Picornavirales ''Picornavirales'' is an order of viruses with vertebrate, invertebrate, protist and plant hosts. The name has a dual etymology. First, ''picorna-'' is an acronym for poliovirus, insensitivity to ether, coxsackievirus, orphan virus, rhinovirus, ...

'', in the family ''

Secoviridae ''Secoviridae'' is a family 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 bact ...

''. Plants serve as natural hosts. There are 12 species in this genus. Diseases associated with this genus include: torrado disease: severe necrosis of leaves and fruits.

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species: * ''Torradovirus arctii'', Burdock mosaic virus * ''Torradovirus cardiacae'', Motherwort yellow mottle virus * ''Torradovirus carotae'', Carrot torradovirus 1 * ''Torradovirus codonopsis'', Codonopsis torradovirus A * ''Torradovirus cucurbitae'', Squash chlorotic leaf spot virus * ''Torradovirus erigeronis'', Fleabane yellow mosaic torradovirus * ''Torradovirus lactucae'', Lettuce necrotic leaf curl virus * ''Torradovirus lycopersici'', Tomato torrado virus * ''Torradovirus manihotis'', Cassava torrado-like virus * ''Torradovirus marchitezum'', Tomato marchitez virus * ''Torradovirus nanorugosum'', Potato rugose stunting virus * ''Torradovirus physalis'', Physalis torrado virus

Structure

Viruses in ''Torradovirus'' are non-enveloped, with icosahedral geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and segmented, bipartite, around 25.4kb in length.

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. The virus is transmitted via a vector (whitefly). Transmission routes are vector and mechanical.

References

External links

Viralzone: Torradovirus

ICTV
{{Taxonbar, from=Q18814781 Secoviridae Virus genera