| Species/Subspecies: | Brachyspira intermedia | ||||||||
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| Categories: | Causes hemolysis; motile | ||||||||
| Etymology: | Genus name: short spiral Species epithet: intermediary (refers to the fact that it seems to be related to both B. hyodysenteriae and B. innocens). | ||||||||
| Significance: | [Important] | ||||||||
| Alternative Species Name(s): | Serpulina intermedia | ||||||||
| Taxonomy: | Class Spirochaetia Order Brachyspirales Family Brachyspiraceae Genus Brachyspira |
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| Type Strain: | PWS/A = ATCC 51140. | ||||||||
| Macromorphology (smell):
| Forms small irregular colonies (0.1-1 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 24-28 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: | |||||||||
| Other Enzymes: | Tryptophanase +/-, hippuricase -, α-galactosidase -, β-glucosidase + | ||||||||
| Fermentation of carbohydrates: | D-ribose - | ||||||||
| Spec. Char.: | |||||||||
| Disease: | Intestinal disease in chicken |
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| Hosts: | Pig, chicken | ||||||||
| 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. | ||||||||
| Comment: | Give production disturbancies in laying hens | ||||||||
| Reference(s): | No. 18, 64, 69, 92 | ||||||||
| Link: | The Swedish Brachyspira, Leptospira and Treponema Group | ||||||||
| Updated: | 2023-03-08 |