Table 2 Glutamine synthetase specific activities determined by the γ-glutamyl transferase assay when M. smegmatis was exposed to conditions of nitrogen limitation (3 mM (NH4)2SO4) and nitrogen excess (60 mM (NH4)2SO4).
(NH4)2SO4 Concentration (mM) | Time (hours) | Specific activity (U) | p-value* |
|---|---|---|---|
3 mM | 0 | 45 ± 17 |  |
|  | 0.5 | 57 ± 12 | 0.01 |
|  | 1 | 63 ± 12 | 0.27 |
|  | 2 | 78 ± 16 | 0.00 |
|  | 4 | 103 ± 17 | 0.00 |
60 mM | 0 | 76 ± 2 |  |
|  | 0.5 | 50 ± 1 | 0.00 |
|  | 1 | 47 ± 5 | 0.08 |