Cheravirus

Cheravirus
Virus classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Picornavirales
Family: Secoviridae
Genus: Cheravirus

Cheravirus is a genus of viruses in the order Picornavirales, in the family Secoviridae. Plants serve as natural hosts. There are five species in this genus.[1][2][3]

The name is derived from Cherry rasp leaf virus.

Taxonomy

The genus contains the following species:[2]

  • Apple latent spherical virus
  • Arracacha virus B
  • Cherry rasp leaf virus
  • Currant latent virus
  • Stocky prune virus

Structure

Viruses in Cheravirus are non-enveloped, with icosahedral geometries, and T=pseudo3 symmetry. The diameter is around 25-30 nm. Genomes are linear and bipartite, around 13.3kb in length.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
CheravirusIcosahedralPseudo T=3Non-envelopedLinearSegmented

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 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 (nematodes maybe seed-transmitted). Transmission routes are vector and seed borne.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
CheravirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmNematodes; mites; thrips

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 21 May 2021.
  3. ↑ ICTVdB Management (2006). 00.111.0.01. Cheravirus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA
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