Biology:Passerivirus
Passerivirus is a genus of viruses in the order Picornavirales, in the family Picornaviridae. Birds serve as natural hosts. There are two species in this genus: Passerivirus A and a second, novel passerivirus that was discovered in 2018 in a population of Hungarian home-reared finches, where it achieved an over 50 percent mortality rate.[1][2][3]
Taxonomy
The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:[3][4]
- Passerivirus ahokothi; Passerivirus A1
- Passerivirus bewaxi; Passerivirus B1, also called Waxbill passerivirus
Structure
Viruses in Passerivirus are non-enveloped, with icosahedral and Spherical geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 8kb in length.[2]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Passerivirus | Icosahedral | Pseudo T=3 | Non-enveloped | Linear | Monopartite |
Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. 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 lysis, and viroporins. Birds serve as the natural host.[2]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Passerivirus | Birds | None | Cell receptor endocytosis | Lysis | Cytoplasm | Cytoplasm | Unknown |
References
- ↑ Pankovics, Péter; Boros, Ákos; Phan, Tung Gia; Delwart, Eric; Reuter, Gábor (2018). "A novel passerivirus (family Picornaviridae) in an outbreak of enteritis with high mortality in estrildid finches (Uraeginthus sp.)". Archives of Virology 163 (4): 1063–1071. doi:10.1007/s00705-017-3699-0. PMID 29322272. http://real.mtak.hu/84261/1/Pankovics%20et%20al.%202018.%20ArchVirol%20163-1063-1071.pdf.
- ↑ 2.0 2.1 2.2 "Viral Zone". ExPASy. http://viralzone.expasy.org/all_by_species/4806.html. Retrieved 13 August 2015.
- ↑ 3.0 3.1 "Virus Taxonomy: 2024 Release". International Committee on Taxonomy of Viruses. https://ictv.global/taxonomy.
- ↑ "Species List: Picornaviridae". International Committee on Taxonomy of Viruses. https://ictv.global/report/chapter/picornaviridae/taxonomy/picornaviridae.
External links
Wikidata ☰ Q18814627 entry
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