| Species/Subspecies: | Brachyspira pilosicoli | ||||||||
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| Categories: | Causes hemolysis; motile | ||||||||
| Etymology: | Genus name: short spiral Species epithet: shaggy colon (refers to the fact that the colon looks hairy [false brush border] during infection). | ||||||||
| Significance: | [Important] | ||||||||
| Alternative Species Name(s): | Serpulina pilosicoli | ||||||||
| Taxonomy: | Class Spirochaetia Order Brachyspirales Family Brachyspiraceae Genus Brachyspira |
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| Type Strain: | P43/6/78 = ATCC 51139. | ||||||||
| Macromorphology (smell):
| Forms small irregular colonies (0.1-3 mm in diameter), which may spred over the agar surface (the bactera "swarm" on the agar plate). Gives a weak hemolysis on blood agar. | ||||||||
| Micromorphology:
| Thin, spiral shaped and motile. Has 8-12 periplasmic flagella (= endoflagella or axial filaments) per cell. | ||||||||
| Gram +/Gram -: | G- (Uppträder som G-, men har en annan typ av cellvägg). | ||||||||
| Metabolism: | Anaerobic, but aerotolerant | ||||||||
| Catalase/Oxidase: | |||||||||
| Biochemical Tests: | Tryptophanase +/-, hippuricase +/-, α-galactosidase +/-, β-glucosidase - | ||||||||
| Fermentation of carbohydrates: | D-ribose + | ||||||||
| Spec. Char.: | |||||||||
| Special Media: | |||||||||
| Disease: | Spirochetal diarrhoea |
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| Hosts: | Pig | ||||||||
| Clinical Picture: | |||||||||
| Genome Sequence: |
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| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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Seven species with standing in nomenclature has been described within genus Brachyspira. About 10 additional species have been reported, but their names have not been approved. Some of these species have been included in the phylogenetic trees and their names are given within quotation marks (see Fig. 97:5 and 6). All species within the genus Brachyspira are very closely related, but "B. corvi", B. aalborgi and B. pilosicoli differ significantly from the other species. | ||||||||
| Reference(s): | No. 44, 64, 71, 92 | ||||||||
| Link: | The Swedish Brachyspira, Leptospira and Treponema Group | ||||||||
| Updated: | 2023-03-08 |