TABLE 4.
Phenotypic characteristics of I. limosus strains and Inquilinus sp. strain AU1979a
| Characteristic |
I. limosus
|
Inquilinus sp. strain AU1979 | ||||||
|---|---|---|---|---|---|---|---|---|
| AU0476T | AU0578 | AU0599 | AU0771 | AU1109 | AU1714 | AU2065 | ||
| Presence of: | ||||||||
| Oxidase | + | + | + | + | + | + | − | − |
| Urease | − | − | − | − | − | − | + | − |
| β-Galactosidase | + | + | + | + | − | + | − | + |
| α-Glucosidase | − | + | + | − | + | − | + | + |
| γ-l-Glutamyl aminopeptidase | + | + | − | + | + | + | + | − |
| Gelatinase | − | − | − | − | + | + | + | − |
| Growth in 6% NaCl | − | + | − | − | + | − | + | − |
| Growth on BCSA | + | − | − | − | − | − | − | − |
| Production of acid from: | ||||||||
| Sucrose | − | + | + | − | − | − | − | − |
| Lactose | − | + | + | − | + | − | − | − |
All strains tested were positive for the following characteristics: presence of catalase, β-glucosidase, phosphatase, lipase, N-acetyl glucosaminidase, proline aminopeptidase, pyrollidonyl aminopeptidase, tryptophan aminopeptidase, and N-benzyl-arginine aminopeptidase activity; growth in 1% NaCl; growth at 25, 28, 32, 37, and 42°C; and acetoin production. All strains investigated were negative for the following characteristics: presence of lysine decarboxylase or arginine dihydrolase activity; denitrification; growth in 10% NaCl; H2S or indole production; and utilization of glucose, mannitol, inositol, sorbitol, rhamnose, sucrose, melibiose, amygdalin, arabinose, and citrate.