Avenavirus

Avenavirus is a genus of viruses, in the family Tombusviridae. Plants serve as natural hosts. There is currently only one species in this genus: the type species Oat chlorotic stunt virus.[1][2]

Avenavirus
Virus classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Tolucaviricetes
Order: Tolivirales
Family: Tombusviridae
Subfamily: Procedovirinae
Genus: Avenavirus
Type species
Oat chlorotic stunt virus

Taxonomy

Group: ssRNA(+)

[2]

Structure

Viruses in Avenavirus are non-enveloped, with icosahedral and Spherical geometries, and T=3 symmetry. The diameter is around 28-34 nm. Genomes are linear, around 4.1kb in length.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
AvenavirusIcosahedralT=3Non-envelopedLinearMonopartite

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, using the premature termination model of subgenomic rna transcription is the method of transcription. Translation takes place by 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
AvenavirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical: contact; seed

References
  1. "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.
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