Brucella abortus
| Brucella abortus | ||||||||||||
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Brucella abortus |
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| Brucella abortus | ||||||||||||
| ( Schmidt 1901) Meyer & Shaw 1920 |
Brucella abortus (also called Bang bacteria ) is a bacterium from the genus Brucella . It is the causative agent of bovine brucellosis , which mainlycauses abortions in cattle(hence the name abortus ), but which also causes disease in humans and causes undulating fever (→ Bang's disease ).
It is a pleomorphic, aerobic , gram-negative and sporeless rod. Brucelles make very high demands on culture media . They grow slowly and best at 37 ° C and microaerophilic conditions, forming small, glossy and transparent colonies after two to four days. There are six biovars .
Since the genetic differences between the Brucellae are very small (<10%) and they can not be distinguished on the basis of their ribosomal RNA , Verger et al. (1985) propose to combine all Brucellae in one species ( B. melitensis ). In 1988, however, it was decided to keep the six previously known classic species names in order to avoid confusion in the medical literature and to take account of the different pathogenicity for humans.
Web links
Individual evidence
- ^ Herbert Hof and Rüdiger Dörries: Medical Microbiology . Georg Thieme Verlag, 5th edition 2014, ISBN 9783131529657 , p. 417
- ^ Advice on brucellosis of the RKI
- ↑ International Committee on Systematics of Prokaryotes: Brucella ( Memento of December 13, 2014 in the Internet Archive )
- ↑ Jean-Michel Verger, Francine Grimontu. a .: Brucella, a Monospecific Genus as Shown by Deoxyribonucleic Acid Hybridization. In: International Journal of Systematic Bacteriology. Volume 35, No. 3, July 1985, pp. 292-295, doi : 10.1099 / 00207713-35-3-292 . ( Full text ( Memento of the original from June 21, 2013 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this note. )
- ^ Jean Euzéby, Aidan C. Parte: Genus Brucella. In: List of Prokaryotic names with Standing in Nomenclature ( LPSN ). Retrieved October 21, 2014 .
- ^ Ignacio López-Goñi, David O'Callaghan: Brucella: Molecular Microbiology and Genomics . Horizon Scientific Press, 2012, ISBN 9781904455936 , p. 5.
