Table 2.
Polyphasic characterization of microorganisms isolated from samples from different places in Antarctica
| Microorganism | GU1.7.1 | GU3.1.1 | AFP5.1 |
|---|---|---|---|
| Genus | Sphingomonas | Plantibacter | Pseudomonas |
| Gram staining | − | + | − |
| Morphology | Rods | Rods | Rods |
| Motility test | + | + | − |
| Acid production from | |||
| Glucose | + | + | + |
| Galactose | + | + | + |
| Xylose | − | − | − |
| Maltose | + | + | − |
| Lactose | − | − | − |
| Saccharose | + | + | − |
| Mannitol | − | − | + |
| Sorbitol | + | − | − |
| Gas production | − | − | − |
| H2S production | − | − | + |
| TSI agar | A/A | A/K | A/K |
| LIA agar | K/K | K/K | K/K |
| Lysine decarboxylase | + | + | + |
| Use of citrate | − | − | + |
| Indole production | − | − | − |
| Catalase | + | + | − |
| Ornithine decarboxylase | − | − | + |
+, positive reaction; −, negative reaction; A, pH decrease; K, pH increase; ND, not determined