Aureusvirus
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Tolucaviricetes
Order: Tolivirales
Family: Tombusviridae
Subfamily: Procedovirinae
Genus: Aureusvirus

Aureusvirus is a genus of viruses, in the family Tombusviridae. Plants serve as natural hosts. There are six species in this genus.[1][2]

Taxonomy

The genus contains the following species:[2]

  • Cucumber leaf spot virus
  • Elderberry aureusvirus 1
  • Johnsongrass chlorotic stripe mosaic virus
  • Maize white line mosaic virus
  • Pothos latent virus
  • Yam spherical virus

Structure

Viruses in Aureusvirus are non-enveloped, with icosahedral and Spherical geometries, and T=3 symmetry. The diameter is around 30 nm. Genomes are linear, around 4.4kb in length.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
AureusvirusIcosahedralT=3Non-envelopedLinearMonopartite

Life cycle

Viral replication is cytoplasmic, and is lysogenic. 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, using the premature termination model of subgenomic RNA transcription is the method of transcription. Translation takes place by leaky scanning, and suppression of termination. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. Transmission routes are mechanical, seed borne, and contact.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
AureusvirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical: contact; seed

References

  1. 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. 1 2 "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 16 May 2021.
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