Cheravirus


Cheravirus is a genus of viruses in the order Picornavirales, in the family Secoviridae. Plants serve as natural hosts. There are eight species in this genus.
The name is derived from Cherry rasp leaf virus.

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:Cheravirus alpinum, Alpine wild prunus virusCheravirus, Arracacha virus BCheravirus avii, Cherry rasp leaf virusCheravirus mali, Apple latent spherical virusCheravirus orobanchis, Orobanche cernua secovirusCheravirus pruni, Stocky prune virusCheravirus ribis, Currant latent virusCheravirus trillii, Trillium govanianum cheravirus

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.
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. Transmission routes are vector and seed borne.
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
CheravirusPlants-Viral movement; mechanical inoculationViral movementCytoplasmCytoplasmNematodes; mites; thrips