TABLE 1.
(A) Biochemical test and (B) carbon source utilization test as an aid to the classification of haloarchaea.
| Wsp3 | Wsp4 | Wsp1 | |
| (A) Biochemical test | |||
| Catalase test | + | + | + |
| Oxidase Test | + | + | − |
| Citrate utilization | + | + | − |
| Production of acid | − | − | − |
| Production of gas | − | − | − |
| Lysine decarboxylase | − | − | − |
| Methyl red test | + | + | − |
| Voges-Proskauer test | − | − | − |
| Nitrate reduction | − | + | + |
| Casein hydrolysis | − | − | − |
| Arginine decarboxylase | − | − | − |
| Urease activity | − | − | − |
| Ornithine decarboxylase | − | − | − |
| Aesulin hydrolysis | + | + | + |
| Gelatin Hydrolysis | + | − | − |
| Indole production | + | − | − |
| Lipase production | − | − | − |
| (B) Carbon source | |||
| Dextrose | W | W | W |
| Pyruvate | W | W | − |
| Lactose | − | − | + |
| Maltose | +++ | W | − |
| Sucrose | W | − | − |
| Galactose | − | − | +++ |
| Arabinose | − | − | − |
| Rhamanose | − | − | − |
| Cellobiose | W | − | − |
| Aldonitol | − | − | − |
| Inositol | − | − | − |
| Inulin | − | − | − |
| Dulcitol | W | − | − |
| Mannose | − | − | − |
| Melibiose | − | − | − |
+++, highly positive; +, positive; −, negative, W, weakly positive.