|Categories:||Spore forming; motile|
|Etymology:||Genus name: a small spindle. |
Species epithet: named after the American bacteriologist F.G. Novy.
|Type Strain:||ATCC 17861 = NCTC 13029.|
||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+|
|Other Enzymes:||Esculinase -, lecithinase (+), tryptophanase (+).|
|Fermentation of carbohydrates:||
|Disease:||Infectious necrotic hepatitis (black disease)
|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).|
|16S rRNA Seq.:|
||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.|
|The revised taxonomy of the mollicutes|
The revised taxonomy of mollicutes (mycoplasmas) has now been introduced on VetBact, which means that many of the species have been given new genus names or moved to another higher taxon.Published 2021-11-25. Read more...