Biology:Mimoreovirus

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Short description: Genus of viruses


Mimoreovirus
Virus classification e
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Duplornaviricota
Class: Resentoviricetes
Order: Reovirales
Family: Sedoreoviridae
Subfamily: Sedoreovirinae
Genus: Mimoreovirus

Mimoreovirus is a genus of viruses, in the family Reoviridae, in the subfamily Sedoreovirinae. The only isolate infects the marine photosynthetic protist Micromonas pusilla, a prasinophyte.[1] There is only one species in this genus: Micromonas pusilla reovirus.[2][3]

Structure

Viruses in Mimoreovirus are non-enveloped, with icosahedral geometries, and T=13, T=2 symmetry. The diameter is around 90-95 nm. Genomes are linear and segmented, around 15.8kb in length. The genome codes for 11 proteins.[2]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Mimoreovirus Icosahedral T=13, T=2 Non-enveloped Linear Segmented

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment to host receptors, which mediates endocytosis. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. The virus exits the host cell by monopartite non-tubule guided viral movement. Marine photosynthetic protists serve as the natural host. Transmission routes are passive diffusion.[2]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Mimoreovirus Algae None Cell receptor endocytosis Cell death Cytoplasm Cytoplasm Arthropod bite

References

  1. Attoui, H; Jaafar, F.M.; Belhouchet, M.; de Micco, P.; Lamballerie, X.; Brussaard, C.P.D. (2006). "Micromonas pusilla reovirus: a new member of the family Reoviridae assigned to a novel proposed genus (Mimoreovirus)". Journal of General Virology 87: 1375–1383. doi:10.1099/vir.0.81584-0. PMID 16603541. http://jgv.microbiologyresearch.org/content/journal/jgv/10.1099/vir.0.81584-0. 
  2. 2.0 2.1 2.2 "Viral Zone". ExPASy. http://viralzone.expasy.org/all_by_species/762.html. Retrieved 13 August 2015. 
  3. "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. https://ictv.global/taxonomy. 

External links

Wikidata ☰ Q18822267 entry