Biology:Alvernaviridae

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Short description: Family of viruses


Alvernaviridae
Luteoviridae virion.jpg
Alvernaviridae virion
Virus classification e
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Sobelivirales
Family: Alvernaviridae

Alvernaviridae is a family of non-enveloped positive-strand RNA viruses. Dinoflagellates serve as natural hosts. There is one genus in this family, Dinornavirus, which contains one species: Heterocapsa circularisquama RNA virus 01. Diseases associated with this family include host population control, possibly through lysis of the host cell.[1][2]

Structure

Viruses in Alvernaviridae are non-enveloped, with icosahedral and spherical geometries, and T=3 symmetry. The diameter is around 34 nm.[1]

Genome

Genomes are linear and non-segmented, around 4.4kb in length.[1]

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive-strand RNA virus replication model in the cytoplasm. Positive-strand RNA virus transcription is the method of transcription. The virus is assembled in the cytoplasm. Dinoflagellates serve as the natural host.[1]

References

  1. 1.0 1.1 1.2 1.3 "Viral Zone". ExPASy. http://viralzone.expasy.org/all_by_species/2897.html. 
  2. "Virus Taxonomy: 2022 Release". International Committee on Taxonomy of Viruses (ICTV). March 2023. https://ictv.global/taxonomy/history. 

External links

Wikidata ☰ Q18810538 entry