Hordeivirus

Hordeivirus
Virus classification
(unranked):	Virus
Realm:	Riboviria
Kingdom:	Orthornavirae
Phylum:	Kitrinoviricota
Class:	Alsuviricetes
Order:	Martellivirales
Family:	Virgaviridae
Genus:	Hordeivirus
Type species
	Barley stripe mosaic virus;

Hordeivirus is a genus of viruses, in the family Virgaviridae.[1] Plants serve as natural hosts. There are currently four species in this genus including the type species Barley stripe mosaic virus.[1][2][3][4]

Taxonomy

Group: ssRNA(+)

Order: Martellivirales

Family: Virgaviridae
- Genus: Hordeivirus
  Anthoxanthum latent blanching virus
  
  Barley stripe mosaic virus
  
  Lychnis ringspot virus
  
  Poa semilatent virus

[1]

Structure

Barley stripe mosaic virus (BSMV) genome organization with functional regions of the γb protein highlighted

Viruses in the genus Hordeivirus are non-enveloped, with rod-shaped geometries. The diameter is around 20-25 nm, with a length of 20-25 nm. Genomes are linear and segmented, tripartite or quadripartite, around 3.3kb in length.[1][2]

Genus	Structure	Symmetry	Capsid	Genomic arrangement	Genomic segmentation
Hordeivirus	Rod-shaped	Helical	Non-enveloped	Linear	Segmented

Life cycle

Viral replication is cytoplasmic, and is lysogenic. 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. Translation takes place by leaky scanning. The virus exits the host cell by tripartite non-tubule guided viral movement. Plants serve as the natural host. Transmission routes are seed borne.[1][2]

Genus	Host details	Tissue tropism	Entry details	Release details	Replication site	Assembly site	Transmission
Hordeivirus	Plants	None	Unknown	Viral movement	Cytoplasm	Cytoplasm	Mechanical: contact; seed

References

"ICTV Report Virgaviridae".
"Viral Zone". ExPASy. Retrieved 15 June 2015.
ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.
Bragg, J.N., Solovyev, A.G., Morozov, S. Yu, Atabekov, J.G. Jackson, A.O. Horeivirus (2006). ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C (Ed), Columbia University, New York, USA.

External links

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[ICTVReport-1] "ICTV Report Virgaviridae".

[ViralZone-2] "Viral Zone". ExPASy. Retrieved 15 June 2015.

[ICTV-3] ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.

[4] Bragg, J.N., Solovyev, A.G., Morozov, S. Yu, Atabekov, J.G. Jackson, A.O. Horeivirus (2006). ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C (Ed), Columbia University, New York, USA.