TABLE 3.
Number of terminal restriction fragment peaks of three target genes in the two bioreactors
| Bioreactor layer | No. of terminal restriction fragment peaks
|
||
|---|---|---|---|
| 16S rRNA genes | amoA genes | nosZ genes | |
| ICB inoculum | 129 | NAa | NA |
| Top | 75 | 8 | 56 |
| Middle | 62 | 7 | 43 |
| After air injection | 110 | 5 | 50 |
| Before air injection | 111 | 4 | 57 |
| TFB inoculum | 43 | 3 | 38 |
| Top | 35 | 7 | 30 |
| Middle | 35 | 5 | 19 |
| Bottom | 28 | 5 | 34 |
NA, not available due to the unsuccessful PCR amplification.