Allexivirus
Allexivirus | |
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Virus classification | |
Group: | Group IV ((+)ssRNA) |
Order: | Tymovirales |
Family: | Alphaflexiviridae |
Genus: | Allexivirus |
Type Species | |
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Allexivirus is a genus of viruses in the order Tymovirales, in the family Alphaflexiviridae. Shallot, onion, and garlic serve as natural hosts. There are currently eight species in this genus including the type species Shallot virus X. Diseases associated with this genus include: mosaic and ringspot symptoms.[1][2]
Taxonomy
Group: ssRNA(+)
- Family: Alphaflexiviridae
- Genus: Allexivirus
- Garlic mite-borne filamentous virus
- Garlic virus A
- Garlic virus B
- Garlic virus C
- Garlic virus D
- Garlic virus E
- Garlic virus X
- Shallot virus X
Structure
Viruses in Allexivirus are non-enveloped, with flexuous and filamentous geometries. The diameter is around 12 nm, with a length of 800 nm. Genomes are linear, around 9kb in length. The genome codes for 6 proteins.[1]
Genus | Structure | Symmetry | Capsid | Genomic Arrangement | Genomic Segmentation |
---|---|---|---|---|---|
Allexivirus | 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 tripartite non-tubule guided viral movement. Shallot, onion, and garlic serve as the natural host. The virus is transmitted via a vector (mite). Transmission routes are vector and mechanical.[1]
Genus | Host Details | Tissue Tropism | Entry Details | Release Details | Replication Site | Assembly Site | Transmission |
---|---|---|---|---|---|---|---|
Allexivirus | Plants: Shallot; plants: onion; plants: garlic | None | Viral movement; mechanical inoculation | Viral movement | Cytoplasm | Cytoplasm | Mites |
References
- 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
- 1 2 ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.