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Changes in populations of nitrifying bacteria (AOB and NOB) during 10 days of incubation as determined by FISH
| Incubation time (days) | AOB (107 cells ml−1)
|
NOB (107 cells ml−1)
|
||
|---|---|---|---|---|
| With NH4+ addition | Without NH4+ addition | With NH4+ addition | Without NH4+ addition | |
| 0 | 2.2 ± 0.4a | 2.1 ± 0.3 | 1.0 ± 0.3 | 1.1 ± 0.3 |
| 3 | 2.1 ± 0.4 | 1.6 ± 0.2 | 0.9 ± 0.1 | 0.5 ± 0.1 |
| 10 | 2.6 ± 0.3 | 1.5 ± 0.3 | 1.6 ± 0.4 | 0.4 ± 0.3 |
The values are means ± standard errors.
