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Database of Biochemical Tests of Pathogenic Enterobacteriaceae Family A tool to identify microbes using minimal biochemical tests |
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| Enterobacter | ||||
| Erwinia | ||||
| Escherichia | ||||
| Salmonella | ||||
| Citrobacter | ||||
| Yersinia | ||||
| Klebsiella | ||||
| Shigella | ||||
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| Serratia | ||||
| Proteus | ||||
| Providencia | ||||
| Morganella |
Description of values of test status
| Test Value | Meaning |
|---|---|
| + | 90-100% Positive |
| - | 0-10% positive |
| (+) | 76-89% positive |
| (-) | 11-25% positive |
| d | 26-75% positive |
| v | strain instability |
shigella
Unique Tests Hierarchy for Seperation from other Organisms
| 1 | Methyl Red | + |
| 2 | Voges-proskauer | - |
| 3 | Citrate | - |
| 4 | Urease | - |
| 5 | h2s Production | - |
| 6 | Oxidase | - |
| 7 | Lysine decarboxylase | - |
| 8 | Arginine dihydrolase | - |
| 9 | KCN | - |
| 10 | Malonate | - |
| 11 | Catalase production | + |