Sea star-associated densovirus
| Ambidensovirus | |
|---|---|
| Virus classification | |
| Group: | Group II (ssDNA) |
| Order: | Unassigned |
| Family: | Parvoviridae |
| Subfamily: | Densovirinae |
| Genus: | Ambidensovirus |
| Type species | |
| Sea star-associated densovirus | |
Sea star-associated densovirus (SSaDV) belongs to the Parvoviridae family. Like the other members of its family, it is a single-stranded DNA virus. Remarkably, most other known densoviruses infect members of the Arthropoda, but SSaDV is the first virus from this subfamily known to kill echinoderms. It causes Sea star wasting disease.[1]
Epidemiology
SSaDV affects sea stars from southern Alaska to Baja California. It tends to occur in large outbreaks with high mortality, as it has in 1972, 1978, 2013, and 2014. See Sea star wasting disease.[1] The virus was isolated from wasting Pycnopodia helianthoides, and detected in small quantities in healthy sea stars and aquarium sediments.[2] The highest viral load was found in the body wall of the central disk.[2]
Structure
The physical characteristics of SSaDV are similar to the other members of the genus Ambidensovirus.[1] It is the only viral candidate to cause wasting in sea stars, and is predicted to be a non-enveloped icosahedral particle at ~25 nm.[2]
References
- 1 2 3 Template:Cite .....journal
- 1 2 3 Hewson, Ian; Button, Jason B.; Gudenkauf, Brent M.; Miner, Benjamin; Newton, Alisa L.; Gaydos, Joseph K.; Wynne, Janna; Groves, Cathy L.; Hendler, Gordon (2014-12-02). "Densovirus associated with sea-star wasting disease and mass mortality". Proceedings of the National Academy of Sciences. 111 (48): 17278–17283. doi:10.1073/pnas.1416625111. ISSN 0027-8424. PMC 4260605
. PMID 25404293.
Further Reading
- Gazzo, Kate. "Loss of Sea Stars Could Collapse Marine Communities."
- Grenet, Anne-Sophie Gosselin, et al. "Les densovirus: une «massive attaque» chez les arthropodes." Virologie 19.1 (2015): 19-31.