|Categories:||Causes hemolysis; spore forming; motile|
|Etymology:||Genus name: a small spindle. |
Species epithet: blood-dissolving, hemolytic.
|Significance:||Is not important in Sweden, but in the USA and in South America.
[Of minor importance]
|Old Species Name(s):||Clostridium novyi typ D|
|Type Strain:||ATCC 9650 = NCTC 13022|
||Form small colonies (1-3 mm i diameter), which can easily float together to form a continuous carpet on the plate (the bacteria "swarm"). Give strong hemolysis on blood agar.|
|Micromorphology:||Large motile rods (0.6-1.6 x 1.9-17.3 µm), which have peritrichous flagella. Form oval subterminal spores, which result in swollen cells.|
|Gram +/Gram -:||G+, but it is difficult to get good result upon gram staining of old cultures.|
|Other Enzymes:||Esculinase -, lecithinase +, tryptophanase +|
|Fermentation of carbohydrates:||
|Spec. Char.:||Optimal growth temperature: 37°C.|
|Disease:||Bacillary haemoglobinuria in cattle (= redwater).
|Hosts:||Cattle and other ruminants|
|Clinical Picture:||Abdominal pain, anemia, dehydration, fever.|
|16S rRNA Seq.:|
||About 180 differens species have been descibed within genus Clostridium. C. haemolyticum is very closely related (phylogenetically) to C. botulinum group III and C. novyi.|