|Categories:||Zoonotic; causes hemolysis; spore forming|
|Etymology:||Genus name: a small spindle. |
Species epithet: breaking through, breaking in pieces.
|Type Strain:||ATCC 13124 = CCUG 1795 = NCTC 8237.|
||Form large translucent, flat and filamentous colonies (about 5 mm in diameter) with irregular edges. Fluoresces in red on blood agar in the presence of carbohydrates. Most strains give a double hemolysis zone on bovine blood agar.|
|Micromorphology:||Large non-motile rods (0.6-2.4 x 1.3-19.0 µm). Form spores, but this is rarely seen. They are large oval and central or subterminal.|
|Gram +/Gram -:||G+|
|Metabolism:||Anaerobic (but not very strict).|
|Other Enzymes:||Esculinase v, lechithinase +, tryptophanase -.|
|Fermentation of carbohydrates:||
|Spec. Char.:||Optimal growth temperature: 43-47°C.|
||Tryptose Sulfite Cycloserine agar (TSC agar) is used for isolation and enumeration of both vegetative cells and spores of C. perfringens in food and clinical samples.|
|Disease:||Necrotic enteritis in broiler chickens. Food poisoning.
|Hosts:||Chicken, pig, ruminants, horse, rabbit, dog, humans etc.|
|Virulence Factors:||Hemolysins (α-, δ-and θ-toxin), etc.|
|16S rRNA Seq.:|
||About 180 differens species have been descibed within genus Clostridium. C. chauvoei C. perfringens belongs to the same phylogenetic group of clostridia as, among others, C. chauvoei and C. septicum.|
|Comment:||C. perfingens is divided in different groups depending upon which enterotoxins that are produced. Type A produces α-toxin. Type B produces α-, β-and ε-toxin. Type C produces α-and β-toxin. Type D produces α-and ε-toxin. Type E produces α-and ι-toxin.|
|Reference(s):||No. 8, 35, 33|
|"Dear child has many names" (call it what you will...)|
For a long time, Rhodococcus hoagii was referred to Rhodococcus equi on VetBact, because we experienced some resistance to the name that is now considered to be the correct one, i.e. Rhodococcus hoagii. Now you can find the bacterium in question under the correct name in VetBact, but you can also find the bacterium when searching for the old name.Published 2021-10-10. Read more...