Aureusvirus is a genus of viruses, in the family Tombusviridae. Plants serve as natural hosts. There are six species in this genus.
Taxonomy The genus contains the following species, listed by scientific name and followed by their common names: Aureusvirus aurei, Pothos latent virus Aureusvirus cucumis, Cucumber leaf spot virus Aureusvirus dioscoreae, Yam spherical virus Aureusvirus sambuci, Elderberry aureusvirus 1 Aureusvirus sorghi, Johnsongrass chlorotic stripe mosaic virus Aureusvirus zeae, Maize white line mosaic 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.
Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentationAureusvirusIcosahedralT=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.
Genus Host details Tissue tropism Entry details Release details Replication site Assembly site TransmissionAureusvirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical: contact; seed
References
External links Viralzone: Aureusvirus ICTV