Figure 3.

Plots representing Riboceto-community in experimental reactor GR1 and control reactor GR2 at the (a) phylum level (relative abundance (RA) > 1%) and (b) genus level (RA > 1%). VFA, CH₄ and CO₂ represent the level of total volatile fatty acids (g/L), methane content (%) and carbon dioxide content (%), respectively. (c) Principal coordinate analysis (PCoA) plot with weighted UniFrac distance matrix visualising beta diversity of the whole microbial community in samples from reactors GR1 and GR2 under the influence of the environmental parameters carbon dioxide content (%), total VFA (g/L) and methane content (%).