| Species/Subspecies: | Erysipelothrix rhusiopathiae | |||||||||||||||
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| Categories: | Zoonotic; causes hemolysis | |||||||||||||||
| Etymology: | Genus name: erysipelas thread. Species epithet: of red disease. | |||||||||||||||
| Significance: | [Very important] | |||||||||||||||
| Taxonomy: | Class Erysipelotrichia Order Erysipelotrichales Family Erysipelothrichaceae Genus Erysipelothrix |
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| Type Strain: | ATCC 19414 = CCUG 221 = NCTC 8163. | |||||||||||||||
| Macromorphology (smell):
| Small transparent nonpigmented colonies (0.2-1 mm in diameter) with a narrow zone of α-hemolysis on blood agar. | |||||||||||||||
| Micromorphology: | Nonmotile and short rods (0.5 x 1.5-3.0 µm) with rounded ends, which may also grow as long filaments (about 60 µm in length). | |||||||||||||||
| Gram +/Gram -: | G+ | |||||||||||||||
| Metabolism: | Facultatively anaeroic | |||||||||||||||
| Catalase/Oxidase: | -/- | |||||||||||||||
| Other Enzymes: | Hippuricase +, tryptophanase -, urease -. | |||||||||||||||
| Biochemical Tests: | Citrate -, Voges-Proskauer -. | |||||||||||||||
| 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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| Disease: |
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| Diagnostics: | Culture after enrichment. Confirmation by MALDI-TOF or biochemical tests. | |||||||||||||||
| Genome Sequence: |
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| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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Eight species have been described within the genus Erysipelothrix. E. rhusiopathiae can be confused with Erysipelothrix tonsillarum and their 16S rRNA sequences are almost identical (see the phylogenetic tree in Fig. 43:4). | |||||||||||||||
| Comment: | Type species for the genus. Is zoonotic. | |||||||||||||||
| Reference(s): | No. 19, 114, 117 | |||||||||||||||
| Updated: | 2023-09-25 |