Oryzavirus

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

Oryzavirus is a genus of double-stranded RNA viruses in the family Reoviridae and subfamily Spinareovirinae. Member viruses infect plants and are transmitted by planthoppers. Diseases associated with this genus include: rice stunting, enations on veins of leaves and leaf sheaths, ragged leaves, and flower suppression. There are two species in this genus.^[1]^[2]

Structure

Viruses in Oryzavirus are non-enveloped, with icosahedral and Round geometries, and T=13, T=2 symmetry. The diameter is around 70 nm. Genomes are linear and segmented, segments are around 1162 to 3849 base pairs (total size around 26 kb). The genome codes for 12 proteins.^[1]

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. 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.^[1] The virus is transmitted via a vector (delphacid planthoppers). Transmission routes are vector.^[1]

Taxonomy

The genus has two species:^[2]

References

^ ^a ^b ^c ^d "Viral Zone". ExPASy. Retrieved 15 June 2015.
^ ^a ^b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 13 May 2021.

External links

Zdroj:https://en.wikipedia.org?pojem=Oryzavirus
Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok. Podrobnejšie informácie nájdete na stránke Podmienky použitia.

[ViralZone-1] "Viral Zone". ExPASy. Retrieved 15 June 2015.

[ICTV-2] "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 13 May 2021.

[1]

[2]