Virgaviridae
Tobacco mosaic virus (TMV) diagram and electron micrograph of virions
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Alsuviricetes
Order: Martellivirales
Family: Virgaviridae
Genera

Virgaviridae is a family of positive-strand RNA viruses. Plants serve as natural hosts.[1][2][3][4] The name of the family is derived from the Latin word virga (rod), as all viruses in this family are rod-shaped. There are currently 59 species in this family, divided among seven genera.[2][3][5]

Structure

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Tobamovirus Rod-shaped Helical Non-enveloped Linear Non-Segmented
Furovirus Rod-shaped Helical Non-enveloped Linear Segmented
Pecluvirus Rod-shaped Helical Non-enveloped Linear Segmented
Hordeivirus Rod-shaped Helical Non-enveloped Linear Segmented
Tobravirus Rod-shaped Helical Non-enveloped Linear Segmented
Pomovirus Rod-shaped Helical Non-enveloped Linear Segmented

Life cycle

Viral replication is cytoplasmic. 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, and suppression of termination. The virus exits the host cell by tripartite non-tubule guided viral movement, and monopartite non-tubule guided viral movement. Plants serve as the natural host.[2][3]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Tobamovirus Plants None Unknown Viral movement Cytoplasm Cytoplasm Mechanical
Furovirus Plants None Unknown Viral movement Cytoplasm Cytoplasm Mechanical inoculation: fungus
Pecluvirus Plants None Unknown Viral movement Cytoplasm Cytoplasm Mechanical inoculation: fungus. Mechanical contact; seed
Hordeivirus Plants None Unknown Viral movement Cytoplasm Cytoplasm Mechanical: contact; seed
Tobravirus Plants None Unknown Viral movement Cytoplasm Cytoplasm Mechanical inoculation: nematodes
Pomovirus Plants None Unknown Viral movement Cytoplasm Cytoplasm Mechanical inoculation: fungus

Taxonomy

Viruses include in the family Virgaviridae are characterized by unique alpha-like replication proteins.[citation needed]

The following genera are recognized:[citation needed]

References

  1. ^ Adams, Michael J.; Adkins, Scott; Bragard, Claude; Gilmer, David; Li, Dawei; MacFarlane, Stuart A.; Wong, Sek-Man; Melcher, Ulrich; Ratti, Claudio; Ryu, Ki Hyun (1 August 2017). "ICTV Virus Taxonomy Profile: Virgaviridae". Journal of General Virology. 98 (8): 1999–2000. doi:10.1099/jgv.0.000884. PMC 5656781. PMID 28786782.
  2. ^ a b c "ICTV Report Virgaviridae".
  3. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  4. ^ Adams MJ, Antoniw JF, Kreuze J (2009) Virgaviridae: a new family of rod-shaped plant viruses. Arch Virol 154(12):1967–1972
  5. ^ ICTV. "Virus Taxonomy: 2015 Release". Retrieved 4 June 2016.

External links

Baltimore (virus classification)
Taxon identifiers
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