| Species/Subspecies: | Riemerella anatipestifer | ||||||||||
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| Category: | Causes hemolysis | ||||||||||
| Etymology: | Genus name: named to honor Riemer, who first described Riemerella anatipestifer. infections in geese in 1904 Species name: brings destruction of ducks. | ||||||||||
| Significance: | Is due to high mortality of economic concern in countries with a large duck production. The disease has not been found in Sweden. [Of minor importance] |
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| Alternative Species Name(s): | Moraxella anatipestifer, Pasteurella anatipestifer. | ||||||||||
| Taxonomy: | Class Flavobacteriia Order Flavobacteriales Family Weeksellaceae Genus Riemerella |
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| Type Strain: | LMG 11054 = ATCC 11845 = CCUG 14215 = CCUG 21370 = NCTC 11014 | ||||||||||
| Macromorphology (smell): | Forms small convex butyrous and transparent colonies (1-2 mm in diameter). Some strains give hemolysis on blood agar. | ||||||||||
| Micromorphology: | Thin rods (0.2-0.4 x 1-5 µm), which appear singly or in pairs. Are sometimes filamentous. | ||||||||||
| Gram +/Gram -: | G- | ||||||||||
| Metabolism: | Microaerophilic | ||||||||||
| Catalase/Oxidase: | +/+ | ||||||||||
| Other Enzymes: | Gelatinase + hippuricase + tryptophanase -, urease V | ||||||||||
| Fermentation of carbohydrates: | Glucose - | ||||||||||
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| Special Media: | |||||||||||
| Disease: | Infectious serositis or septicemia anserum exsudativa |
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| Hosts: | Duck (as well as goose, turkey and pheasants) | ||||||||||
| Clinical Picture: | Nasal discharges, mild coughing and sneezing, tremors of the neck and head, as well as bad coordination during movement. | ||||||||||
| Genome Sequence: |
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| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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Two species have been described within the genus Riemerella, which is most closely related to the genera Bergeyella and Chryseobacterium. The genus Riemerella is also related to the genus Flavobacterium, which like the genus Riemerella belongs to the order Flavobacteriales. | ||||||||||
| Updated: | 2023-03-15 |