Английская Википедия:Bromovirus
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Bromovirus is a genus of viruses, in the family Bromoviridae.[1] Plants serve as natural hosts. There are six species in this genus.[2][3]
Taxonomy
The following species are assigned to the genus:[2]
- 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.[2][3]
Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
---|---|---|---|---|---|
Bromovirus | Icosahedral | T=3 | 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, 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 serve as the natural host. Transmission routes are mechanical and contact.[2][3]
Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
---|---|---|---|---|---|---|---|
Bromovirus | Plants | None | Viral movement; mechanical inoculation | Viral movement | Cytoplasm | Cytoplasm | Mechanical inoculation: insects; contact |
Recombination
Brome mosaic virus (BMV) genomes are able to undergo RNA-RNA homologous recombination upon infection of plant cells.[4] The RNA-dependent RNA polymerase specified by the BMV genome appears to undergo template switching (copy choice) recombination during viral RNA synthesis.[5]
References
External links
Шаблон:Baltimore classification
- ↑ Шаблон:Cite journal
- ↑ 2,0 2,1 2,2 2,3 Ошибка цитирования Неверный тег
<ref>
; для сносокICTV
не указан текст - ↑ 3,0 3,1 3,2 Шаблон:Cite web
- ↑ Lai MM. RNA recombination in animal and plant viruses. Microbiol Rev. 1992 Mar;56(1):61-79. PMID 1579113; PMCID: PMC372854
- ↑ Kim MJ, Kao C. Factors regulating template switch in vitro by viral RNA-dependent RNA polymerases: implications for RNA-RNA recombination. Proc Natl Acad Sci U S A. 2001 Apr 24;98(9):4972-7. doi: 10.1073/pnas.081077198. Epub 2001 Apr 17. PMID 11309487; PMCID: PMC33148