TABLE 6.
Expression of R. etli fixG-gusA (pFAJ1192), fixN-gusA (pFAJ1193), arcA-gusA (pFAJ1319), rpoN2-gusA (pFAJ1175), and orf180-gusA (pFAJ1176) in R. etli wild-type and mutant backgrounds
| Straina | Plasmid | β-Glucuronidase activity (Miller units)b
|
||
|---|---|---|---|---|
| Aerobic conditions | Microaerobic conditions | Symbiotic conditions | ||
| CNPAF512 (wild type) | pFAJ1192 (fixG-gusA) | 31 (1) | 324 (42) | 134 (25) |
| FAJ1170 (rpoN1 rpoN2) | pFAJ1192 | 39 (1) | 345 (56) | 1,318 (190) |
| RP1000 (nifA) | pFAJ1192 | 15 (6) | 358 (38) | 979 (103) |
| FAJ1183 (fnrN) | pFAJ1192 | 43 (12) | 38 (15) | 27 (3) |
| RpFAJ1002 (fixL) | pFAJ1192 | 61 (12) | 263 (52) | 453 (152) |
| CNPAF512 (wild type) | pFAJ1193 (fixN-gusA) | 6 (1) | 16 (4) | 1,219 (153) |
| FAJ1170 (rpoN1 rpoN2) | pFAJ1193 | 6 (1) | 16 (2) | 604 (148) |
| RP1000 (nifA) | pFAJ1193 | 7 (2) | 22 (5) | 644 (70) |
| FAJ1183 (fnrN) | pFAJ1193 | 7 (1) | 8 (2) | 20 (14) |
| RpFAJ1002 (fixL) | pFAJ1193 | 8 (2) | 29 (4) | 403 (75) |
| CNPAF512 (wild type) | pFAJ1319 (arcA-gusA) | 0 (0) | 39 (6) | NDc |
| FAJ1182 (fnrN) | pFAJ1319 | 0 (0) | 0 (1) | ND |
| FAJ1183 (fnrN) | pFAJ1319 | 0 (0) | 0 (1) | ND |
| RpFAJ1002 (fixL) | pFAJ1319 | 0 (0) | 27 (6) | ND |
| CNPAF512 (wild type) | pFAJ1175 (rpoN2-gusA) | ND | 390 (49) | ND |
| FAJ1183 (fnrN) | pFAJ1175 | ND | 467 (56) | ND |
| FAJ1170 (rpoN1 rpoN2) | pFAJ1175 | ND | 7 (3) | ND |
| CNPAF512 (wild type) | pFAJ1176 (orf180-gusA) | ND | 49 (7) | ND |
| FAJ1183 (fnrN) | pFAJ1176 | ND | 52 (11) | ND |
| FAJ1170 (rpoN1 rpoN2) | pFAJ1176 | ND | 6 (3) | ND |