Biology:Benyvirus

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Short description: Genus of viruses


Benyvirus
Beet Necrotic Yellow Vein Virus - Benyvirus BNYVV - 5357098-1.png
Beet Necrotic Yellow Vein Virus
Virus classification e
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Alsuviricetes
Order: Hepelivirales
Family: Benyviridae
Genus: Benyvirus
Species[1]

Benyvirus is a genus of viruses, in the family Benyviridae.[2][3] Plants serve as natural hosts. There are four species in this genus. Diseases associated with this genus include: BNYVV: rhizomania.[3][4][5]


Taxonomy

  • Beet necrotic yellow vein virus (ICTVdB Virus Code: 00.088.0.01.001)
  • Beet soil-borne mosaic virus (ICTVdB Virus Code: 00.088.0.01.002)
  • Burdock mottle virus (ICTVdB Virus Code: 00.088.0.01.004)[3]
  • Rice stripe necrosis virus, isolates of which are known as RSNV, (ICTVdB Virus Code: 00.088.0.01.003), a rod-shaped virus containing just six open reading frames in its genome. A pathogen of rice plants, it may cause chlorosis, necrosis, and malformation.[6]

Structure

(Left) Scheme showing the accessibility to antibodies of various parts of the coat protein amino acid (aa) sequence in particles of BNYVV. Encircled numbers designate different epitopes. (Center) Negative contrast electron micrograph of stained purified particles of BNYVV. (Right) From left (a) negative contrast electron micrograph of a BNYVV particle and (b, c, d) computer-filtered micrographs of BNYVV particle.

Viruses in the genus Benyvirus are non-enveloped, with rod-shaped geometries. The diameter is around 20 nm, with a length of 85–390 nm. Genomes are linear and segmented, around 6.7kb in length.[3][4]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Benyvirus Rod-shaped 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. The virus exits the host cell by tripartite non-tubule guided viral movement. Plant serve as the natural host. The virus is transmitted via a vector (protozoan). Transmission routes are vector.[3][4]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Benyvirus Plants None Viral movement; mechanical inoculation Viral movement Cytoplasm Cytoplasm Vector=protozoan

References

  1. ↑ "Virus Taxonomy: 2018b Release" (in en). March 2019. https://ictv.global/taxonomy. 
  2. ↑ Gilmer, David; Ratti, Claudio (1 July 2017). "ICTV Virus Taxonomy Profile: Benyviridae". Journal of General Virology 98 (7): 1571–1572. doi:10.1099/jgv.0.000864. PMID 28714846. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 "ICTV Report Benyviridae". http://www.ictv.global/report/benyviridae. 
  4. ↑ 4.0 4.1 4.2 "Viral Zone". ExPASy. http://viralzone.expasy.org/all_by_species/639.html. 
  5. ↑ Index of Viruses - Benyvirus (2006). In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C (Ed), Columbia University, New York, USA. https://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_index.htm
  6. ↑ Lozano, Ivan; Morales, Francisco (22 March 2009). "Molecular characterisation of Rice stripe necrosis virus as a new species of the genus Benyvirus". European Journal of Plant Pathology 124 (4): 673–680. doi:10.1007/s10658-009-9453-z. 

External links

Wikidata ☰ Q4890740 entry



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