Enterobacteriaceae: Difference between revisions
From IDWiki
Enterobacteriaceae
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==Identification== |
==Identification== |
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* Main tests include [[lactose fermentation]], [[mannitol fermentation]], [[triple sugar iron agar]] (TSI) for H<sub>2</sub>S production and gas, [[indole test]], [[urease test]], and growth on citrate |
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!Organism |
!Organism |
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|[[Klebsiella oxytoca]] |
|[[Klebsiella oxytoca]] |
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|[[Citrobacter koseri]] |
|[[Citrobacter koseri]] |
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|[[Escherichia coli]] |
|[[Escherichia coli]] |
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|–/± |
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|[[Citrobacter freundii]] |
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|[[Klebsiella pneumonia]] |
|[[Klebsiella pneumonia]] |
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|– |
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| +/± |
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|[[Enterobacter cloacae]] |
|[[Enterobacter cloacae]] |
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|[[Klebsiella aerogenes]] |
|[[Klebsiella aerogenes]] |
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|– |
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|–/± |
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|motile, methyl red + |
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|[[Plesiomonas shigelloides]] |
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|[[Citrobacter freundii]] |
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|motile, methyl red + |
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|[[Citrobacter koseri]] |
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|[[Yersinia enterocolitica]] |
|[[Yersinia enterocolitica]] |
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|– |
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|oxidase + |
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|[[Plesiomonas shigelloides]] |
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|–/± |
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|[[Proteus vulgaris]] |
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|[[Proteus mirabilis]] |
|[[Proteus mirabilis]] |
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|[[Proteus vulgaris]] |
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|[[Morganella morganii]] |
|[[Morganella morganii]] |
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|[[Providencia rettgeri]] |
|[[Providencia rettgeri]] |
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|[[Providencia stuartii]] |
|[[Providencia stuartii]] |
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|± |
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|[[Citrobacter species]] |
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|[[Edwardsiella tarda]] |
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|[[Escherichia coli]] (inactive) |
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|[[Hafnia species]] |
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|[[Salmonella species]] |
|[[Salmonella species]] |
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|[[Escherichia coli]] (inactive) |
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|[[Shigella species]] (other than ''S. dysenteriae'') |
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|– |
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|DNAse – |
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|[[Hafnia species]] |
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|DNAse + |
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|[[Serratia marcescens]] |
|[[Serratia marcescens]] |
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|– |
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|[[Shigella species]] (other than ''S. dysenteriae'') |
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|[[Edwardsiella tarda]] |
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Revision as of 14:02, 14 August 2020
- A family of Gram-negative bacteria
- Non-spore-forming, glucose-fermenting facultative anaerobes
- Medically important bacteria within the family includes:
Identification
- Main tests include lactose fermentation, mannitol fermentation, triple sugar iron agar (TSI) for H2S production and gas, indole test, urease test, and growth on citrate
| Lactose | PPA | H2S | Mannitol | Indole | Urease | Growth on Citrate | Other Tests | Organism |
|---|---|---|---|---|---|---|---|---|
| + | – | – | + | + | + | + | nonmotile, methyl red – | Klebsiella oxytoca |
| +/± | + | motile, methyl red + | Citrobacter koseri | |||||
| – | – | Escherichia coli | ||||||
| – | + | + | TSI A/A with gas, nonmotile | Klebsiella pneumonia | ||||
| +/± | + | TSI A/A with gas, motile, arginine dihydrolase + | Enterobacter cloacae | |||||
| – | + | TSI A/A with gas, motile, arginine dihydrolase – | Klebsiella aerogenes | |||||
| +/± | – | + | + | – | –/± | + | motile, methyl red + | Citrobacter freundii |
| ± | – | + | + | + | +/± | + | motile, methyl red + | Citrobacter koseri |
| – | + | ± | + | – | Yersinia enterocolitica | |||
| – | + | – | – | oxidase + | Plesiomonas shigelloides | |||
| – | + | + | – | + | + | –/± | Proteus vulgaris | |
| – | + | +/± | Proteus mirabilis | |||||
| ± | – | – | + | – | TSI with gas | Proteus penneri | ||
| –/± | – | + | + | – | TSI with gase | Morganella morganii | ||
| – | + | + | + | + | TSI no gas | Providencia rettgeri | ||
| – | + | – | + | TSI no gas | Providencia stuartii | |||
| – | + | – | + | – | – | Edwardsiella tarda | ||
| +/± | + | – | – | ± | Salmonella species | |||
| – | + | + | – | – | Escherichia coli (inactive) | |||
| – | – | + | DNAse – | Hafnia species | ||||
| DNAse + | Serratia marcescens | |||||||
| – | – | Shigella species (other than S. dysenteriae) | ||||||
| – | – | – | – | Shigella dysenteriae |
