Campylobacteraceae
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| Garrity et al., 2006 |
The Campylobacteraceae are a family of bacteria. This group includes some medically important pathogens. They belong to the class of the proteobacteria, the Gram stain turns out negative, as with all members of this class.
The genomes of the following species have been completely sequenced : Campylobacter concisus , C. curvus , C. fetus , C. hominis and C. jejuni
features
The cells are curved, S-shaped, or spirally wound rods. They can move like a corkscrew through a polar flagellum . The size is between 0.2-0.8 × 0.5-5 micrometers. Most species are microaerophilic , which means they require environments with low oxygen levels. The oxidase test is positive for the majority of the species, Campylobacter gracilis is one of the exceptions.
Different types of Campylobacter can cause inflammation of the small intestine ( enteritis ) with bloody diarrhea, the so-called Campylobacter enteritis . Examples are Campylobacter fetus and Campylobacter jejuni . Campylobacter jejuni is one of the most common pathogens causing inflammation of the small intestine. Humans are infected through drinking water and food, often through poultry meat.
Some pathogenic species of the genus Arcobacter are also known, for example Arcobacter butzleri can cause gastrointestinal diseases. The spiral or curved (vibroid-shaped) Sulfurospirillum reduces sulfur and uses formic acid or hydrogen as an electron donor, one speaks of sulfur breathing . It occurs freely in fresh and marine water.
Systematics
The following species belong to the family:
- Arcobacter Vandamme et al. 1991
- Campylobacter Sebald and Véron 1963
- Sulfurospirillum Schumacher et al. 1993
The genus Dehalospirillum , which used to belong to the family , with the only species D. multivorans , was added to the genus Sulfurospirillum .
Individual evidence
- ↑ H.-W. Baenkler, U. Clement: Dual series of internal medicine . Georg Thieme, Stuttgart 2001, ISBN 3-13-128751-9 .
- ↑ JP Euzéby: List of Prokaryotic names with Standing in Nomenclature - Campylobacteraceae (as of February 4, 2016).
literature
- Michael T. Madigan, John M. Martinko, Jack Parker: Brock - Microbiology . 11th edition, Pearson Studium, Munich 2006, ISBN 3-8274-0566-1 .
- George M. Garrity (Ed.): Bergey's Manual of Systematic Bacteriology . 2nd edition, Volume 2: The Proteobacteria. Part C: The Alpha-, Beta-, Delta-, and Epsilonproteabacteria. Springer, New York 2005, ISBN 0-387-24145-0 .
Web links
- BfR (PDF; 248 kB) Arcobacter spp. in raw meat can cause food infections in humans