VetBact
VetBact logo

VetBact

Swedish University of Agricultural Sciences

Veterinary bacteriology: information about important bacteria
Veterinary bacteriology


Species/Subspecies: Clostridium novyi
Categories: Spore forming; motile
Etymology: Genus name: a small spindle.
Species epithet: named after the American bacteriologist F.G. Novy.
Significance:  [Important]   
Taxonomy:
Phylum
Firmicutes
Class
Clostridia
Order
Clostridiales
Family
Clostridiaceae 
Genus
Clostridium
Type Strain: ATCC 17861 = NCTC 13029.
Macromorphology (smell):
 
Form medium sized colonies (1-5 mm in diameter), which can easily spread as a contiuous film over the entire plate (the bacteria "swarm").
Micromorphology: Large rods, which usually are motile. Produce oval spores, which are terminal or subterminal and may cause the cell to swell.
Gram +/Gram -:
 
G+
Metabolism: Anaerobic
Catalase/Oxidase:-/-
Other Enzymes: Esculinase -, lecithinase (+), tryptophanase (+).
Fermentation of carbohydrates:
D-glucoselactosemaltoseL-rhamnosesucrose
?-v--
L-arabinosecellobioseD-mannitolsalicintrehalose
---(-)-
glycerolinulinraffinoseD-sorbitolstarch
?----
Other carbohydrates: Xylose -.
Spec. Char.:
Disease:Infectious necrotic hepatitis (black disease)
Hosts: Sheep, cattle
Clinical Picture:
Virulence Factors: Necrotizing α-toxin, β-toxin (lechitinase), γ-toxin (phopholipase C), δ-toxin (oxygen-labile hemolysin), ε-toxin (lipase), ζ-toxin (hemolysin), η toxin (tropomyosinase) and θ-toxin (lipase).
Genome Sequence:
Acc-noStrainSize (bp)Genome
NC_008593 NT 2 547 720 1 c + 0 

16S rRNA Seq.:
Acc-noStrainNumber of NTOperon
L37594 ATCC 17861T 1 452 10 

Taxonomy/phylogeny:
 
About 180 differens species have been descibed within genus Clostridium. C. novyi is very closely related (phylogenetically) to C. botulinum group III and C. haemolyticum.
Comment:Two types of C. novyi, A and B, have been defined. Both type A and B produce α-toxin, but type A also produces γ-and ε-toxin. Some strains of type A also produces δ-toxin. Type B strains produce β-, ζ- and η-toxin. Some type B strains also produce θ-toxin.
Reference(s): No. 33
Link: Clostridia.net
Updated:2020-01-23

News

New families introduced within the order Enterobacterales
Phylogenetic tree for the order <i>Enterobacteriales</i>.

The order Enterobacterales (formerly called Enterobacteriales) previously consisted of bacteria with different properties and phylogenetically, these bacteria were far apart. In order for the taxonomy to be more in line with phylogeny, some of these bacteria have, therefore, been sorted into 6 new families.

Published 2022-04-13. Read more...

Recently Updated

Recent blog posts


Swedish University of Agricultural Sciences