NOB_nxrB_methylferulate_18days
The nitrite oxidoreductase subunit B (nxrB) gene of Nitrospira was amplified using the primer pair nxrB169f (5-TACATGTGGTGGAACA-3) and nxrB638r (5-CGGTTCTGGTCRATCA-3), following the method of Pester et al., 2014 (DOI: 10.1038/ismej.2013.292).