Fig. 4.
qPCR analyses of bamA, abcA, and 16S rRNA genes of Peptococcaceae and total bacteria. Samples 1 and 2 contained 11% white biofilm corresponding to 4.8 ± 2.9 × 108 and 4.2 ± 2.0 × 108 bacterial 16S rRNA genes/cm2 biofilm, respectively. Sample_3 contained 70% biofilm corresponding to 9.8 ± 4.3 × 109 bacterial 16S rRNA genes/cm2 biofilm. Sample_4 contained 100% biofilm corresponding to 13 ± 5.7 × 109 bacterial 16S rRNA genes/cm2 biofilm. Error bars represent standard deviations based on analytical replicates of the same reactor sample