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Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology
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Species/Subspecies: Clostridium septicum
Etymology: Genus name: a small spindle.
Species epithet: putrefactive.
Significance:  [Of minor importance]   
Taxonomy:
Phylum
Firmicutes
Class
Clostridia
Order
Clostridiales
Family
Clostridiaceae 
Genus
Clostridium
Type Strain: ATCC 12464 = CCUG 4855 = NCTC 547.
Macromorphology (smell):
Clostridium septicum  
Forms very small gray-whitish colonies, which quickly flow out onto the plate into a dense carpet (the bacteria "swarm"). Gives β-hemolysis on blood agar.
Micromorphology: Large rods (0.6-1.9 x 1.9-35.0 µm), which usually are motile. Produce oval and subterminal spores.
Gram +/Gram -:G+
Metabolism: Anaerobic
Catalase/Oxidase:-/-
Other Enzymes: Esculinase +, lecithinase -, tryptophanase -.
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
?++--
L-arabinosecellobioseD-mannitolsalicintrehalose
-(+)-v(+)
glycerolinulinraffinoseD-sorbitolstarch
?----
Other carbohydrates: Fructose +, galactose (+), mannose +, ribose v, xylose -.
Spec. Char.:
Hosts: Cattle, sheep, pig, humans
Disease:False blackleg
Clinical Picture:
Virulence Factors: C. septicum may cause severe infections by production f a hemolytic and necrotizing α-toxin.
16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
U59278 ATCC 12464T 1 507  

Taxonomy/phylogeny:
Clostridium septicum  
About 180 differens species have been descibed within genus Clostridium. C. septicum is closely related toC. chauvoei.
Link: Clostridia.net
Updated:2020-01-23

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