Vitivirus


Vitivirus is a genus of viruses in the order Tymovirales, in the family Betaflexiviridae. Plants serve as natural hosts. There are 19 species in this genus.

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:Vitivirus alphactinidiae, Actinidia virus AVitivirus alpharubi, Blackberry virus AVitivirus alphavitis, Grapevine virus AVitivirus ananasae Pineapple vitivirus AVitivirus betactinidiae, Actinidia virus BVitivirus betavitis, Grapevine virus BVitivirus deltavitis, Grapevine virus DVitivirus duomenthae, Mint virus 2Vitivirus epsilonvitis, Grapevine virus EVitivirus etavitis, Grapevine virus HVitivirus gammavitis, Grapevine virus GVitivirus iotavitis, Grapevine virus IVitivirus jeivitis, Grapevine virus JVitivirus lambdavitis Grapevine virus LVitivirus latensheraclei, Heracleum latent virusVitivirus nuvitis, Grapevine virus NVitivirus phivitis, Grapevine virus FVitivirus vaccinii, Blueberry green mosaic associated virusVitivirus viarracaciae, Arracacha virus V

Structure

Viruses in Vitivirus are non-enveloped, with flexuous and filamentous geometries. The diameter is around 12 nm. Genomes are linear, around 7.6kb in length. The genome codes for 5 proteins.
GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
VitivirusFilamentousNon-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 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 mechanical.
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
VitivirusPlants-Viral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical inoculation: pseudococcid mealybugs; Mechanical inoculation: aphids