Luteoviridae
| Luteoviridae | |
|---|---|
| Virus classification | |
| Group: |
Group IV ((+)ssRNA)
|
| Family: |
Luteoviridae
|
| Genera | |
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Luteoviridae is a family of viruses. Plants serve as natural hosts. There are currently 33 species in this family, divided among 3 genera. Diseases associated with this family include: yellowing symptoms.[1][2]
Taxonomy
Group: ssRNA(+)
-
Family: Luteoviridae
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Genus: Polerovirus
- Beet chlorosis virus
- Beet mild yellowing virus
- Beet western yellows virus
- Carrot red leaf virus
- Cereal yellow dwarf virus-RPS
- Cereal yellow dwarf virus-RPV
- Chickpea chlorotic stunt virus
- Cotton leafroll dwarf virus
- Cucurbit aphid-borne yellows virus
- Maize yellow dwarf virus-RMV
- Melon aphid-borne yellows virus
- Pepper vein yellows virus
- Potato leafroll virus
- Suakwa aphid-borne yellows virus
- Sugarcane yellow leaf virus
- Tobacco vein distorting virus
- Turnip yellows virus
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Structure
Viruses in Luteoviridae are non-enveloped, with icosahedral and Spherical geometries, and T=3 symmetry. The diameter is around 25-30 nm. Genomes are linear and non-segmented, around 5.3-5.7kb in length.[1] Luteoviruses can act as helper viruses for Umbraviruses, providing them with a coat protein.[2]
| Genus | Structure | Symmetry | Capsid | Genomic Arrangement | Genomic Segmentation |
|---|---|---|---|---|---|
| Luteovirus | Icosahedral | T=3 | Non-Enveloped | Linear | Monopartite |
| Polerovirus | Icosahedral | T=3 | Non-Enveloped | Linear | Monopartite |
| Unassigned | Head-Tail | T=16 | Non-Enveloped | Linear | Monopartite |
| Enamovirus | Icosahedral | T=3 | Non-Enveloped | Linear | Monopartite |
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. Translation takes place by leaky scanning, -1 ribosomal frameshifting, and suppression of termination. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. The virus is transmitted via a vector (insects). Transmission routes are vector and mechanical.[1]
| Genus | Host Details | Tissue Tropism | Entry Details | Release Details | Replication Site | Assembly Site | Transmission |
|---|---|---|---|---|---|---|---|
| Luteovirus | Plants | Phloem | Viral movement; mechanical inoculation | Viral movement | Cytoplasm | Cytoplasm | Mechanical inoculation: aphids |
| Polerovirus | Plants | Phloem | Viral movement; mechanical inoculation | Viral movement | Cytoplasm | Cytoplasm | Mechanical inoculation: aphids |
| Unassigned | Bacteria | None | Injection | Lysis | Cytoplasm | Cytoplasm | Passive diffusion |
| Enamovirus | Plants | Phloem | Viral movement; mechanical inoculation | Viral movement | Cytoplasm | Cytoplasm | Mechanical inoculation: aphids |
References
External Links
- Viralzone: Luteoviridae
- ICTV
- ICTVdB - The Universal Virus Database, version 3. http://www.ncbi.nlm.nih.gov/ICTVdb/ICTVdB/
