Table 2. Number of samples used for community profiling analysis and respective number of operational taxonomic units (OTUs) retrieved for the bacterial and archaeal communities analyzed.
OTU numbers are given for three distinct databases (total, without singletons and only including common OTUs). Results are depicted for each of the primers used for microbial profiling based on the 16S rRNA gene.
| Life | Fluorescent | Number of | Total OTU | OTU number | Common |
|---|---|---|---|---|---|
| domain | label | samples | number | (no singletons) | OTUs |
| Bacteria | 27F-FAM | 174 | 136 | 107 | 19 |
| 1492R-VIC | 180 | 157 | 93 | 20 | |
| Archaea | 21F-FAM | 156 | 64 | 37 | 8 |
| 915R-VIC | 156 | 58 | 42 | 6 |