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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Brachyspira aalborgi
Categories: Causes hemolysis; motile; primarily of interest in human medicin
Etymology: Genus name: short spiral
Species epithet: from Aalborg.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Spirochaetes
Class
Spirochaetia
Order
Spirochaetales
Family
Brachyspiraceae 
Genus
Brachyspira
Type Strain: 513A
Macromorphology (smell): Weak hemolysis on blood agar.
Micromorphology: Thin (0.2 x 1.7-6 µm), spiral shaped and motile. Have 8-10 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 -, α-galactosidase -, β-glucosidase -
Spec. Char.:
Disease:Human intestinal spirocheaetosis (HIS).
Hosts: Human
Clinical Picture: Chronic diarrhoea, rectal bleeding and abdominal pain.
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
Z22781 (T) 1450  

Taxonomy/phylogeny:
 
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.
Updated:2020-11-05

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