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Bromovirus
''Bromovirus'' is a genus of viruses, in the family '' Bromoviridae''. Plants serve as natural hosts. There are six species in this genus. Taxonomy The following species are assigned to the genus: * ''Broad bean mottle virus'' * '' Brome mosaic virus'' * ''Cassia yellow blotch virus'' * '' Cowpea chlorotic mottle virus'' * ''Melandrium yellow fleck virus'' * ''Spring beauty latent virus'' Structure Viruses in the genus ''Bromovirus'' are non-enveloped, with icosahedral geometries, and T=3 symmetry. The diameter is around 26 nm. Genomes are linear and segmented, tripartite. 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, using the internal initiation model of subgenomic RNA transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cowpea Chlorotic Mottle Virus
''Cowpea chlorotic mottle virus'', known by the abbreviation CCMV, is a virus that specifically infects the cowpea plant, or black-eyed pea. The leaves of infected plants develop yellow spots, hence the name "chlorotic". Similar to its "brother" virus, ''Cowpea mosaic virus'' (CPMV), CCMV is produced in high yield in plants. In the natural host, viral particles can be produced at 1–2 mg per gram of infected leaf tissue. Belonging to the bromovirus genus, cowpea chlorotic mottle virus (CCMV) is a small spherical plant virus. Other members of this genus include the brome mosaic virus (BMV) and the broad bean mottle virus (BBMV). History Bancroft et al. in 1967 described the first experiments to isolate and characterize the virus. Since that time, due to the relative ease with which it is grown and isolated, many researchers have focused their attention on the virus. The interest of the scientific community for this virus is also due to a conspicuous property: it is possible ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brome Mosaic Virus
''Brome mosaic virus'' (BMV) is a small (28 nanometer, nm, 86S), positive-stranded, icosahedral RNA plant virus belonging to the genus ''Bromovirus'', family ''Bromoviridae'', in the ''Alphavirus''-like superfamily. BMV was first isolated in 1942 from bromegrass (''Bromus inermis''), had its genome, genomic organization determined by the 1970s, and was completely sequenced with commercially available cloning, clones by the 1980s. The alphavirus-like superfamily includes more than 250 plant and animal viruses including Tobacco mosaic virus, Semliki forest virus, Hepatitis E virus, Sindbis virus, and arboviruses (which cause certain types of encephalitis).Sullivan & Ahlquist, 1997 Many of the positive-strand RNA viruses that belong to the alphavirus family share a high degree of similarity in proteins involved in genomic replication and synthesis. The sequence similarities of RNA replication genes and strategies for BMV have been shown to extend to a wide range of plant and animal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
