Table 1 Differential characteristics between strain V4 and related species belonging to the genus Sphingobium
From: Sphingobium sp. V4, a bacterium degrading multiple allelochemical phenolic acids
Characteristic | 1 | 2 | 3 |
|---|---|---|---|
pH range | 5.0–9.0 | 6.0–10.0 | 6.0–10.0 |
Highest salt tolerance (%, w/v) | 4.0 | 5.0 | 5.0 |
Catalase/oxidase |  + / +  |  − / +  |  − / +  |
Nitrate reduction |  +  | w |  −  |
L-tryptophan fermentation |  +  |  −  |  −  |
Enzyme activity (API ZYM) | |||
 Esterase lipase (C8) |  +  |  −  |  −  |
 Lipase (C14) |  +  |  +  |  −  |
 Trypsin |  +  |  −  | w |
 Acid phosphatase |  −  |  +  |  +  |
 α-Chymotrypsin |  +  |  +  |  −  |
 α-Galactosidase |  +  |  −  |  +  |
 β-Galactosidase | w |  −  |  −  |
 β-Glucuronidase |  +  |  +  |  −  |
Assimilation of (API 20NE) | |||
 D-Mannose |  −  |  +  |  +  |
 N-Acetylglucosamine |  −  |  +  |  +  |
 Potassium gluconate |  +  |  −  |  −  |
 Capric acid |  −  |  +  |  +  |