Enterobacterales: Difference between revisions
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== Background == |
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* Order of Gram-negative bacilli comprising seven families |
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** [[Enterobacteriaceae]] |
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** [[Erwiniaceae]] |
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** [[Pectobacteriaceae]] |
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** [[Yersiniaceae]] |
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** [[Hafniaceae]] |
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** [[Morganellaceae]] |
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** [[Budviciaceae]] |
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=== Microbiology === |
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*Order of Gram-negative bacilli comprising seven families |
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**[[Enterobacteriaceae]] |
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**[[Erwiniaceae]] |
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**[[Pectobacteriaceae]] |
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**[[Yersiniaceae]] |
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**[[Hafniaceae]] |
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**[[Morganellaceae]] |
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**[[Budviciaceae]] |
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=== 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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{| class="wikitable sortable" |
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!Lactose |
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!PPA |
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!H<sub>2</sub>S |
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!Mannitol |
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!Indole |
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!Urease |
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!Growth on Citrate |
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!Other Tests |
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!Organism |
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|- |
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| rowspan="6" | + |
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| rowspan="6" |– |
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| rowspan="6" |– |
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| rowspan="6" | + |
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| rowspan="3" | + |
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| + |
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| + |
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|nonmotile, methyl red – |
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|[[Klebsiella oxytoca]] |
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|- |
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| +/± |
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| + |
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|motile, methyl red + |
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|[[Citrobacter koseri]] |
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|- |
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|– |
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|– |
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| |
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|[[Escherichia coli]] |
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|- |
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| rowspan="3" |– |
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| + |
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| + |
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|TSI A/A with gas, nonmotile |
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|[[Klebsiella pneumonia]] |
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|- |
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| +/± |
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| + |
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|TSI A/A with gas, motile, arginine dihydrolase + |
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|[[Enterobacter cloacae]] |
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|- |
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|– |
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| + |
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|TSI A/A with gas, motile, arginine dihydrolase – |
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|[[Klebsiella aerogenes]] |
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|- |
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| +/± |
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|– |
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| + |
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| + |
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|– |
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|–/± |
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| + |
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|motile, methyl red + |
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|[[Citrobacter freundii]] |
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|- |
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| rowspan="3" |± |
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| rowspan="3" |– |
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| + |
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| + |
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| + |
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| +/± |
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| + |
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|motile, methyl red + |
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|[[Citrobacter koseri]] |
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|- |
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| rowspan="2" |– |
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| + |
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|± |
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| + |
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|– |
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| |
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|[[Yersinia enterocolitica]] |
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|- |
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|– |
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| + |
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|– |
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|– |
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|oxidase + |
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|[[Plesiomonas shigelloides]] |
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|- |
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| rowspan="13" |– |
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| rowspan="6" | + |
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| rowspan="2" | + |
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| rowspan="2" |– |
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| + |
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| + |
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|–/± |
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| |
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|[[Proteus vulgaris]] |
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|- |
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|– |
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| + |
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| +/± |
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| |
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|[[Proteus mirabilis]] |
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|- |
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|± |
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|– |
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|– |
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| + |
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|– |
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|TSI with gas |
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|[[Proteus penneri]] |
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|- |
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|–/± |
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|– |
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| + |
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| + |
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|– |
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|TSI with gas |
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|[[Morganella morganii]] |
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|- |
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| rowspan="2" |– |
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| + |
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| + |
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| + |
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| + |
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|TSI no gas |
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|[[Providencia rettgeri]] |
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|- |
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|– |
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| + |
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|– |
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| + |
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|TSI no gas |
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|[[Providencia stuartii]] |
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|- |
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| rowspan="7" |– |
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| + |
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|– |
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| + |
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|– |
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|– |
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| |
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|[[Edwardsiella tarda]] |
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|- |
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| +/± |
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| + |
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|– |
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|– |
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|± |
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| |
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|[[Salmonella species]] |
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|- |
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| rowspan="5" |– |
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| rowspan="4" | + |
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| + |
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|– |
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|– |
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| |
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|[[Escherichia coli]] (inactive) |
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|- |
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| rowspan="3" |– |
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| rowspan="2" |– |
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| rowspan="2" | + |
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|DNAse – |
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|[[Hafnia species]] |
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|- |
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|DNAse + |
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|[[Serratia marcescens]] |
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|- |
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|– |
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|– |
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| |
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|[[Shigella species]] (other than ''S. dysenteriae'') |
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|- |
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|– |
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|– |
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|– |
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|– |
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| |
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|[[Shigella dysenteriae]] |
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|} |
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[[Category:Gram-negative bacilli]] |
[[Category:Gram-negative bacilli]] |
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Revision as of 13:31, 13 September 2020
Background
Microbiology
- Order of Gram-negative bacilli comprising seven families
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 gas | 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 |
