| Species/Subspecies: | Morganella morganii subsp. morganii | ||||||||
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| Categories: | Motile; in the normal flora | ||||||||
| Etymology: | Genus name: named after the Brittish bacteriologist H. de R. Morgan, who first studied this organism. Species epithet: see Genus name. Subspecies epithet: see Genus name. | ||||||||
| Significance: | Occurs as contaminants of meat and has a certain importance in food hygiene. [Of minor importance] |
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| Alternative Species Name(s): | Proteus morganii | ||||||||
| Taxonomy: | Class Gammaproteobacteria Order Enterobacterales Family Morganellaceae Genus Morganella |
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| Type Strain: | ATCC 25830 = CCUG 6328 = NCTC 235. | ||||||||
| Macromorphology (smell): | |||||||||
| Micromorphology: | Short, straight and motile rod with peritrichous flagella. | ||||||||
| Gram +/Gram -: | G- | ||||||||
| Metabolism: | Facultatively anaerobic | ||||||||
| Catalase/Oxidase: | +/- | ||||||||
| Other Enzymes: | DNase -, esculinase -, ornithine decarboxylase +, tryptophanase +, urease +. | ||||||||
| Biochemical Tests: | Citrate -, hydrogen sulfide v, methyl red +, 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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| Spec. Char.: | |||||||||
| Disease: | Otitis externa and cystitis in dogs. Skin abscesses and septicemia in reptiles. |
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| Hosts: | Belongs to the normal intestinal flora of mammals (including humans), and reptiles. | ||||||||
| Clinical Picture: | |||||||||
| 16S rRNA Seq.: |
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| Taxonomy/phylogeny:
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Two species have been described within genus Morganella and Morganella morgani has been further divided into two subspecies. | ||||||||
| Comment: | Similar in many respects to Proteus spp., but does NOT swarm on agar plates. | ||||||||
| Reference(s): | No. 174 | ||||||||
| Updated: | 2023-03-29 |