Table 2.
Antibiotic sensitivity assaya
| Antibiotic | Amt/disc |
S. meliloti 1021 |
Sce10 |
Sce11 |
|||
|---|---|---|---|---|---|---|---|
| Diam (mm) | SEM | Diam (mm) | SEM | Diam (mm) | SEM | ||
| Streptomycin | 10 μg | 7.0 | 0.0 | 7.0 | 0.0 | 7.0 | 0.0 |
| Kanamycin | 30 μg | 11.3 | 0.3 | 7.0* | 0.0 | 7.0* | 0.0 |
| Bacitracin | 2 IU | 7.0 | 0.0 | 7.0 | 0.0 | 7.0 | 0.0 |
| Lysozyme | 250 μg | 7.0 | 0.0 | 7.0 | 0.0 | 7.0 | 0.0 |
| Cycloserine | 100 μg | 9.7 | 0.3 | 10 | 0.6 | 9.7 | 0.7 |
| Penicillin | 10 IU | 14.3 | 0.9 | 7.7* | 0.7 | 22.7* | 1.5 |
| Vancomycin | 5 μg | 21.3 | 1.2 | 19 | 0.0 | 22.7** | 0.3 |
a
The diameters of clearance around the disc (7 mm across) are presented together with the associated standard errors of the means (SEM). For each experiment, the average of the results determined for three plates is presented (n = 3). *, significant differences (P < 0.01; two-sided t test with equal variances) between the reference strain and strains Sce10 and Sce11; **, significant differences (P < 0.01; two-sided t test with equal variances) between strains Sce10 and Sce11.