| Species/Subspecies: | Nicoletella semolina | ||||||||
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| 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 [Important] |
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| Taxonomy: | Class Gammaproteobacteria Order Pasteurellales Family Pasteurellaceae Genus Nicoletella |
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| Type Strain: | CCUG 43639. | ||||||||
| Macromorphology (smell):
| 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- | ||||||||
| Catalase/Oxidase: | +/+ | ||||||||
| Other Enzymes: | Eskulinase (= beta-glucosidase) (-), ornithine decarboxylase -, tryptophanase (indole) -, urease + | ||||||||
| Biochemical Tests: | Citrate -, hydrogen sulphide -. | ||||||||
| Fermentation of carbohydrates: | D-glucose - lactose - maltose - L-rhamnose - sucrose - L-arabinose - cellobiose - D-mannitol - salicin - trehalose - glycerol - inulin - raffinose - D-sorbitol - starch - |
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| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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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 | ||||||||
| Updated: | 2023-03-29 |