TABLE 3.
Biochemical and morphologic characteristics of H. mesocricetorum in comparison to those of closely related helicobacters
| Characteristic | H. mesocricetoruma | H. rodentium | H. pullorum | H. pametensis | H. cholecystus | H. cinaedi | H. hepaticus | H. muridarum | H. trogontum | H. bilis |
|---|---|---|---|---|---|---|---|---|---|---|
| Catalase | 7/7 | + | + | + | + | + | + | + | + | + |
| Urease | 0/7 | − | − | − | − | − | + | + | + | + |
| Alkaline phosphatase | 7/7 | − | − | + | + | − | NDc | + | − | ND |
| γ-Glutamyltransferase | 0/7 | − | − | − | − | − | ND | + | + | ND |
| H2S production | 0/7 | ND | ND | − | − | − | + | + | ND | + |
| Hippurate hydrolysis | 0/7 | ND | ND | − | − | − | − | − | ND | ND |
| Nitrate reduction | 6/7 | + | + | + | + | + | + | − | + | + |
| Periplasmic fibers | − | − | − | − | − | − | − | + | + | + |
| No. of flagella | 2 | 2 | 1 | 2 | 1 | 1–2 | 2 | 10–14 | 5–7 | 3–14 |
| Location | Bipolar | Bipolar | Polar | Bipolar | Polar | Polar, bipolar | Bipolar | Bipolar | Bipolar | Bipolar |
| Flagellar sheath | − | − | − | + | + | + | + | + | + | + |
| 1% glycine | 0/7 | + | ND | + | + | + | + | − | − | + |
| 1.5% NaCl | 0/7 | ND | ND | − | − | −b | + | − | − | − |
| 37°C | 7/7 | + | + | + | + | + | + | + | + | + |
| Cephalothind | 6/6 | R | S | S | R | I | R | R | R | R |
| Nalidixic acidd | 1/6 | R | R | S | I | S | R | R | R | R |
| Reference | 21 | 23 | 5 | 9 | 10, 12 | 6 | 14 | 17 | 8 |
a
Number of strains positive or resistant/number of strains tested.
b
Growth in 2% NaCl.
c
ND, not determined.
d
R, resistant; S, susceptible; I, intermediate.