- Source: Closteroviridae
Closteroviridae is a family of viruses. Plants serve as natural hosts. There are four genera and 59 species in this family, seven of which are unassigned to a genus. Diseases associated with this family include: yellowing and necrosis, particularly affecting the phloem.
Taxonomy
Genome type and transmission vector are two of the most important traits used for classification. Ampeloviruses and Closteroviruses have monopartite genomes and are transmitted by pseudococcid mealybugs (and soft scale insects) and aphids respectively. While Criniviruses are bipartite and transmitted by whiteflies.
Genera:
Ampelovirus
Closterovirus
Crinivirus
Velarivirus
Unassigned species:
Actinidia virus 1
Alligatorweed stunting virus
Blueberry virus A
Megakespama mosaic virus
Mint vein banding-associated virus
Olive leaf yellowing-associated virus
Persimmon virus B
Structure
Viruses in the family Closteroviridae are non-enveloped, with flexuous and filamentous geometries. The diameter is around 10–13 nm, with a length of 950–2200 nm. Genomes are linear and non-segmented, bipartite, around 20kb in length.
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 tubule-guided viral movement.
Plants serve as the natural host. Transmission routes are mechanical.
References
External links
ICTV Report: Closteroviridae
Viralzone: Closteroviridae
Kata Kunci Pencarian:
- Klasifikasi virus
- Citrus tristeza virus
- Closteroviridae
- RNA virus
- Tomato chlorosis virus
- Martellivirales
- Baltimore classification
- Mosaic virus
- Carrot yellow-leaf virus
- List of grape diseases
- List of virus families and subfamilies
- List of invasive species in Texas
