Velarivirus is a genus of viruses, in the family Closteroviridae.[1] Plants serve as natural hosts. There are nine species in this genus. Diseases associated with this genus include: GLRaV-7: symptomless in white-berried grapevine cultivar from Albania.[1][2][3]

Taxonomy

The following species are assigned to the genus, listed by scientific name and followed by their common names:[3]

Structure

Viruses in the genus Velarivirus are non-enveloped, with filamentous geometries. These viruses are about 1500-1700 nm long. Genomes are linear, around 16-17kb in length. The genome codes for 10 proteins.[1][2]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Velarivirus Filamentous Non-enveloped Linear Monopartite

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 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.[1][2]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Velarivirus Plants None Viral movement; mechanical inoculation Viral movement Cytoplasm Cytoplasm Mechanical inoculation: insects

References

  1. ^ a b c d "ICTV Report Closteroviridae".
  2. ^ a b c "Viral Zone". ExPASy. Retrieved 13 August 2015.
  3. ^ a b "Virus Taxonomy: 2024 Release". International Committee on Taxonomy of Viruses. Retrieved 9 March 2025.
Allikas: http://en.wikipedia.org/wiki/Velarivirus
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