Carlavirus
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Carlavirus, also known as "Carnation latent virus group" is a genus of virus that infects plants. It contains thirty-five described species and twenty-nine tentative species..[1]
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[edit] Virology
The virions are non enveloped, filamentous, 470-1000 nanometers (nm) or more in length and 12-13 nm in diameter.
The linear 5.8-9 kilobase genome is positive single stranded RNA. The 3’ terminus is polyadenylated. In some species the 5’ end is capped. The genome encodes 3 to 6 proteins including a coat protein located at the 3' end and an RNA dependent RNA polymerase located at the 5' end of the genome.
[edit] Transmission
Infection is at times spread by aphids in a semi-persistent mode, that is, the vector is infective for a number of hours.(Pimentel) Some species are transmitted by Bemisia tabaci in a semi-persistent mode or through the seed.[1] Most species infect only a few hosts and cause infections with few or no symptoms, for example, American hop latent virus and lily symptomless virus. Some, such as blueberry scorch virus and poplar mosaic virus, cause serious illnesses. (Foster)
[edit] References
[edit] External links
- Astier, S. Principles of Plant Virology Page 378. Online. February 13, 2008.
- Foster, Gary. "Carlavirus Isolation and RNA Extraction." Foster, Gary D. and Sally C. Taylorin. Plant Virology Protocols: From Virus Isolation to Transgenic Resistance. Page 145. 1998. Humana Press. Online. February 13, 2008.
- ICTV Database. Carlavirus. Online. February 28, 2008.
- Pimentel, David. Encyclopedia of Pest Management.Page 407. CRC Press. 2002. ISBN 0824706323/ Google Books. Online February 13, 2008.
- The Taxonomicon. Online. February 28, 2008.
[edit] External links
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