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]
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]
^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. Bibcode:2009EJPP..124..673L. doi:10.1007/s10658-009-9453-z. S2CID1819899.
