Chrysovirus
| Chrysovirus | |
|---|---|
| Virus classification | |
| Group: |
Group III (dsRNA)
|
| Family: |
Chrysoviridae
|
| Type Species | |
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Chrysovirus is a genus of viruses. It is the only genus in the family Chrysoviridae. They are class III double stranded RNA viruses which infect fungi, in particular Penicillium. Their name is derived from the Greek word chrysos which means yellow-green. There are currently nine species in this genus including the type species Penicillium chrysogenum virus.[1][2]
Taxonomy
Group: dsRNA
-
Family: Chrysoviridae
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Genus: Chrysovirus
- Amasya cherry disease associated chrysovirus
- Aspergillus fumigatus chrysovirus
- Cryphonectria nitschkei chrysovirus 1
- Fusarium oxysporum chrysovirus 1
- Helminthosporium victoriae 145S virus
- Penicillium brevicompactum virus
- Penicillium chrysogenum virus
- Penicillium cyaneo-fulvum virus
- Verticillium dahliae chrysovirus 1
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Structure
Viruses in Chrysovirus are non-enveloped, with icosahedral geometries, and T=1, T=2 symmetry. The diameter is around 35-40 nm. Genomes are linear and segmented, around 12.5kb in length. The genome codes for 4 proteins.[1] The genome has three double stranded RNA segments. All have extended highly conserved terminal sequences at both ends.
| Genus | Structure | Symmetry | Capsid | Genomic Arrangement | Genomic Segmentation |
|---|---|---|---|---|---|
| Chrysovirus | Icosahedral | T=1 | 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 double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. The virus exits the host cell by cell to cell movement. Fungi serve as the natural host.[1]
| Genus | Host Details | Tissue Tropism | Entry Details | Release Details | Replication Site | Assembly Site | Transmission |
|---|---|---|---|---|---|---|---|
| Chrysovirus | Fungi | None | Cytoplasmic exchange; sporogenesis; Hyphal anastomosis | Cytoplasmic exchange; sporogenesis; Hyphal anastomosis | Cytoplasm | Cytoplasm | Cytoplasmic exchange; sporogenesis; Hyphal anastomosis |
References
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