TABLE 2.
Comparison of biochemical tests for Helicobacter saguini and other Helicobacter spp.a
| Taxon | Catalase | Oxidase | NO3 | Urease | IAH | GGT | PO4 | Growth at 42°C | Growth with 1% glycine | Drug resistancec |
DNA G+C content (mol%) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NA | CE | |||||||||||
| Helicobacter saguinib | + | + | − | − | − | + | − | + | + | R | R | 34.6 |
| Helicobacter jaachi | + | + | − | + | + | − | − | + | + | S | R | 41 |
| “Helicobacter callitrichis” | + | + | − | − | − | − | + | + | + | S | R | 39.6 |
| Helicobacter macacae | + | − | − | − | − | − | − | + | + | R | R | 40.6 |
| Helicobacter trogontum | + | + | + | + | − | + | − | + | ND | R | R | 34 |
| Helicobacter bilis | + | + | + | + | − | + | − | + | + | R | R | ND |
| Helicobacter marmotae | + | + | − | + | − | − | + | − | + | R | R | ND |
| Helicobacter canis | − | + | − | − | + | + | + | + | − | S | I | 45 |
| Helicobacter hepaticus | + | + | + | + | + | − | − | − | + | R | R | 35.9 |
| Helicobacter pylori | + | + | − | + | − | + | + | − | − | R | S | 35–37 |
a
NO3, nitrate reduction; IAH, indoxyl acetate hydrolysis; GGT, γ-glutamyl transpeptidase; PO4, alkaline phosphatase hydrolysis.
b
Data were modified from our 1999 paper (5) and represent 4 strains from the original study and 4 strains from 2006 isolates. In all cases except for GGT, the results represent 8/8 strains. For GGT, the result represents 5/8 strains.
c
NA, nalidixic acid; CE, cephalothin; R, resistant; S, susceptible.