Table 1 Effect of glnB and glnK mutations on nlmAglnKamtB expression
From: Role of PII proteins in nitrogen fixation control of Herbaspirillum seropedicae strain SmR1
Growth Conditions | β-galactosidase Activity [nmol o-nitrophenol/(min.mg protein)] | ||
|---|---|---|---|
| Â | Strains | ||
|  | LNamtBlacZ (SmR1, amtB::lacZ ) | LNglnKamtBlacZ (Δ glnK , amtB::lacZ ) | LNglnBamtBlacZ ( glnB -TcR, amtB::lacZ ) |
5 mmol/L glutamate | (2.5 ± 0.2) × 103 | (2.4 ± 0.2) × 103 | (2.3 ± 0.2) × 103 |
2 mmol/L NH4Cl | (2.1 ± 0.1) × 103 | (2.29 ± 0.08) × 103 | (2.2 ± 0.1) × 103 |
20 mmol/L NH4Cl | (1.1 ± 0.2) × 102 | (1.4 ± 0.4) × 102 | (1.6 ± 0.3) × 102 |