Rickettsiaceae
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Rickettsiaceae
(ri′ket·sē′ās·ē′ē)
(microbiology) A family of the order Rickettsiales; small, rod-shaped, coccoid, or diplococcoid cells often found in arthropods; includes human and animal parasites and pathogens.
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Rickettsiaceae
IN BRIEF: n. - Microorganism resembling bacteria inhabiting arthropod tissues but capable of causing disease in vertebrates.
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Saunders Veterinary Dictionary:
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Rickettsiaceae
A family of bacteria in the order Rickettsiales. Includes the genera Rickettsia and Orienta.
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Rickettsiaceae
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This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (April 2011) |
| Rickettsiaceae | |
|---|---|
| Scientific classification | |
| Kingdom: | Bacteria |
| Phylum: | Proteobacteria |
| Class: | Alpha Proteobacteria |
| Order: | Rickettsiales |
| Family: | Rickettsiaceae Pinkerton, 1936 |
| Genera | |
The Rickettsiaceae are a family of bacteria, including most notably the genus Rickettsia.
Most human pathogens in this family are in genus Rickettsia. They spend part of their life cycle in the bodies of arthropods such as ticks or lice, and are then transmitted to humans or other mammals by the bite of the arthropod.
It contains Gram-negative bacteria, very sensitive to environmental exposure, and thus adapted to obligate intracellular infection.
Rickettsia rickettsii is considered the prototypical infectious organism in the group.
Similar arthropod borne Rickettsial infections exist in other areas of the world.
| Phylogeny of Rickettsiales | |||||||||||||||||||||||||||||||||||||||||||||
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| Robust phylogeny of Rickettsiales from Williams et al. (2007)[1] |
References
- ^ Williams, K. P.; Sobral, B. W.; Dickerman, A. W. (2007). "A Robust Species Tree for the Alphaproteobacteria". Journal of Bacteriology 189 (13): 4578–4586. doi:10.1128/JB.00269-07. PMC 1913456. PMID 17483224. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1913456.
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Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.
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