Table 2 Changes in the population of methane oxidizing bacteria and ammonium oxidizing bacteria in flooded soil incubated under aerobic and anaerobic conditions. Microbial population estimated after complete oxidation of head space CH4. For all samples n = 3. Values are means and standard deviations
Incubation period (day) | Methanotrophs with soluble methane monooxygenase (smmo) (104 CFU g−1 soil) | Ammonium oxidizers (103 MPN g−1 soil) | ||
|---|---|---|---|---|
Aerobic | Anaerobic | Aerobic | Anaerobic | |
0 | 11.66 ± 1.52 | 11.66 ± 1.52 | 0.86 ± 0.10 | 0.86 ± 0.10 |
5 | 21.66 ± 2.51 | 8.33 ± 3.51 | 0.43 ± 0.05 | 0.11 ± 0.01 |
10 | 28.33 ± 2.88 | 4.33 ± 0.60 | 0.30 ± 0.07 | 0.06 ± 0.02 |
20 | 22.00 ± 2.64 | 2.66 ± 1.15 | 0.12 ± 0.03 | 0.04 ± 0.01 |
40 | 7.00 ± 2.64 | 1.33 ± 0.57 | 0.05 ± 0.05 | 0.01 ± 0.00 |
60 | 2.00 ± 1.00 | 0.35 ± 0.26 | 0.02 ± 0.01 | 0.01 ± 0.00 |