Table 1
Phenotypic tests for identification of Acinetobacter baumannii (ACB) complex
| A. calcoaceticus | A. baumannii | A. pittii | A. nosocomialis | A. seifertii | A. dijkshoorniae | |
|---|---|---|---|---|---|---|
| Acid production from glucose | – | + | V (+) | + | + | + |
| Growth temperature | ||||||
| 37 °C | (+) | + | + | + | ||
| 41 °C | (–) | + | V | + | ||
| 44 °C | – | + | + | V | ||
| Carbon source utilization test | ||||||
| Citroconitate | – | V (+) | – | – | – | – |
| β-Alanine | V (–) | + | V (+) | V (+) | V (+) | + |
| Malate | V (–) | V (+) | V (+) | + | V (+) | |
| Ribose | V (–) | V (+) | V (–) | – | ||
| Leucine | V (–) | V (+) | V (+) | V (+) | V (+) | + |
| Ornithine | + | V (+) | V (+) | V (+) | V (+) | V (+) |
| Gentisate | – | V (–) | V (–) | V (+) | V (+) | + |
| Azelate | + | V (+) | + | V (+) | + | |
| l-Arabinose | V (–) | V (+) | V (+) | + | – | + |
| Adipate | + | V (+) | + | V (+) | V (+) | + |
| Putrescine | + | |||||
| Tartarate | V (–) | V (–) | V (+) | – | V (+) | V (+) |
| Trigonrlline | V (–) | V (+) | V (+) | V (–) | – | V (+) |
| Sorbinic acid | (–) | V (+) | (–) | (+) | ||
| Glycerate | V (+) | (–) | V (–) | (–) | ||
| Acetylglutamate | (–) | V (–) | V (–) | V (–) | ||
| Asparagine | + | – | – | (–) | ||
| l-Hydroxylproline | (–) | (+) | (–) | V (–) | ||
| Levulinate | V (–) | V (–) | – | V (–) | ||
[i] V (+) variable, majority are positive; V (–) variable, majority are negative; (+), more than 80% are positive; (–), 20% or less are positive; +, all are positive; –, all are negative; variable means 20%–79% are positive.
Figure 1
Diagrammatic representation of matrix-assisted laser desorption–ionization time-of-flight mass spectrometry work flow for microbial identification.