Veterinary bacteriology: information about important bacteria
|Etymology:||Genus name: named after the Swiss bacteriologist Jacques Nicolet, who has studied the family Pasteurellaceae in his research. |
Species epithet: semolina (the colonies look like semolinas).
|Significance:||Is regularly isolated from Swedish horses with respiratory problems, but it does not necessarily prove that N. semolina is the causative agent
|Type Strain:||CCUG 43639.|
||Small white colonies (0.5-2 mm in diameter), which are similar to semolinas. The colonies can be moved on the agar surface with a plastic loop without losing the shape. Give no hemolysis at blood agar.|
|Micromorphology:||Short, non-motile and pleomorphic rods.|
|Gram +/Gram -:||G-|
|Other Enzymes:||Eskulinase (= beta-glucosidase) (-), ornithine decarboxylase -, tryptophanase (indole) -, urease +|
|Biochemical Tests:||Citrate -, hydrogen sulphide -.|
|Fermentation of carbohydrates:||
N. semolina is also negative for D-galactose and seem to be non-fermentative.
|16S rRNA Seq.:|
||There is only one species described within the genus Nicoletella. which is relatively close to Histophilus somni, which also is a single species within its genus.|
|Reference(s):||No. 1, 51|