| 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: |
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| Spec. Char.: | |||||||||||||||||||||||||||||||
| Disease: |
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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: | 2022-01-13 |