Table 1 Differential phenotypic characteristics of strains AF52-21T, CM04-06T, and the related species F. prausnitzii ATCC 27768T.
Phenotypic features | 1 | 2 | 3 |
|---|---|---|---|
Growth | |||
Temperature range (optimum) (°C) | 20–42 (37) | 30–45 (37) | 20–42 (37) |
pH range | 6.0–7.5 | 5.0–8.0 | 6.0–7.5 |
Salt tolerance (%) | 1 | 3 | 3 |
Fermentation products | |||
formic acid (mM) | 4.86 | 7.62 | 18.20 |
acetic acid (mM) | 69.70 | 44.8 | 29.67 |
butyric acid (mM) | 15.08 | 40.03 | 39.10 |
lactic acid (mM) | 29.25 | 30.53 | 5.70 |
Hydrolysis of | |||
Aesculin | + | − | + |
Gelatin | − | + | − |
Acid from (API 20A and API 50CHL) | |||
Cellobiose | + | − | w |
D-Fructose | w | − | + |
D-Fucose | w | − | w |
D-Galactose | w | − | − |
D-Glucose | w | − | + |
D-Lactose | + | − | − |
D-Maltose | + | + | w |
D-Mannitol | + | − | − |
D-Mannose | + | + | − |
D-Raffinose | − | w | − |
D-Trehalose | + | w | w |
Gluconate | − | − | + |
Glycogen | + | − | − |
Inositol | w | − | − |
Inulin | + | − | + |
Methyl-β-D-Xylopyranoside | w | − | − |
Enzyme activity (API ZYM) | |||
N-acetyl-β-Glucosaminidase | − | w | − |
Naphthol-AS-BI-Phosphohydrolase | + | − | + |
α-Glucosidase | − | − | + |
β-Galactosidase | − | − | w |
β-Glucosidase | + | − | − |
β-Glucuronidase | + | w | + |
DNA G + C (mol %) | 57.77 | 57.51 | 52 − 57 |
