Bromoviridae is a family of viruses. Plants serve as natural hosts. There are six genera in the family.
Taxonomy The following genera are assigned to the family: Alfamovirus Anulavirus Bromovirus Cucumovirus Ilarvirus Oleavirus
Structure Viruses in the family Bromoviridae are non-enveloped, with icosahedral and bacilliform geometries. The diameter is around 26-35 nm.
Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentationIlarvirusIcosahedralT=3Non-envelopedLinearSegmentedAnulavirusIcosahedralT=3Non-envelopedLinearSegmentedBromovirusIcosahedralT=3Non-envelopedLinearSegmentedOleavirusIcosahedralT=1Non-envelopedLinearSegmentedAlfamovirusVariesNon-envelopedLinearSegmentedCucumovirusIcosahedralT=3Non-envelopedLinearSegmented
Genomes are linear and segmented, tripartite.
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 internal initiation model of subgenomic rna transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. Transmission routes are mechanical and contact.
Genus Host details Tissue tropism Entry details Release details Replication site Assembly site TransmissionIlarvirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical inoculation: insects; contactAnulavirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmUnknownBromovirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical inoculation: insects; contactOleavirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical inoculation: insects; contactAlfamovirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical inoculation: insectsCucumovirusPlantsNoneViral movement; mechanical inoculationViral movementCytoplasmCytoplasmMechanical inoculation: insects; contact
References
External links
ICTV Report: Bromoviridae Viralzone: Bromoviridae