Table 1 Core genera and core OTUs and their average relative abundances in household biogas digesters
Core genera/OTUs | Relative abundance (%) | Core genera/OTUs | Relative abundance (%) | ||||
|---|---|---|---|---|---|---|---|
Cluster I | Cluster II | All samples | Cluster I | Cluster II | All samples | ||
Phylum Firmicutes | Phylum Firmicutes | ||||||
 Clostridium | 34.37 ± 4.26 | 10.56 ± 1.29 | 19.42 ± 2.49 |  Anaerovorax | 0.72 ± 0.14 | 0.57 ± 0.09 | 0.62 ± 0.08 |
  OTU1 | 16.39 ± 2.63 | 5.27 ± 0.90 | 9.41 ± 1.38 |  Ruminococcus | 0.45 ± 0.13 | 0.66 ± 0.14 | 0.58 ± 0.10 |
  OTU1200 | 3.27 ± 0.62 | 0.59 ± 0.12 | 1.59 ± 0.31 |  Oscillospira | 0.09 ± 0.02 | 0.32 ± 0.10 | 0.23 ± 0.06 |
  OTU24 | 1.29 ± 0.28 | 0.51 ± 0.14 | 0.80 ± 0.15 | Phylum Synergistetes | |||
 Clostridium XI | 10.36 ± 1.84 | 2.09 ± 0.28 | 5.17 ± 0.92 |  Cloacibacillus | 3.90 ± 1.74 | 4.05 ± 1.13 | 3.99 ± 0.93 |
  OTU2 | 5.22 ± 1.17 | 1.34 ± 0.22 | 2.78 ± 0.53 |   OTU5 | 3.38 ± 1.58 | 3.31 ± 1.07 | 3.34 ± 0.87 |
  OTU3 | 4.62 ± 0.95 | 0.70 ± 0.12 | 2.16 ± 0.46 |  Aminobacterium | 0.52 ± 0.14 | 0.85 ± 0.22 | 0.73 ± 0.15 |
 Turicibacter | 4.53 ± 0.85 | 1.57 ± 0.24 | 2.67 ± 0.41 | Phylum Actinobacteria | |||
  OTU4 | 4.53 ± 0.85 | 1.57 ± 0.24 | 2.67 ± 0.41 |  Corynebacterium | 0.34 ± 0.16 | 0.69 ± 0.20 | 0.56 ± 0.14 |
 Syntrophomonas | 2.01 ± 0.66 | 2.19 ± 0.38 | 2.12 ± 0.33 | Leucobacter | 0.42 ± 0.14 | 0.09 ± 0.02 | 0.21 ± 0.06 |
  OTU9 | 1.63 ± 0.62 | 1.08 ± 0.31 | 1.28 ± 0.30 | Phylum Spirochaetes | |||
 Sedimentibacter | 0.44 ± 0.12 | 1.50 ± 0.35 | 1.10 ± 0.23 |  Candidatus Cloacamonas | 0.39 ± 0.19 | 5.35 ± 1.02 | 3.50 ± 0.74 |
  OTU19 | 0.32 ± 0.08 | 1.07 ± 0.26 | 0.79 ± 0.17 | Phylum Chloroflexi | |||
 Tissierella | 1.73 ± 0.48 | 0.54 ± 0.15 | 0.98 ± 0.21 |  OTU10 (Anaerolinaceae) | 4.41 ± 1.44 | 0.67 ± 0.15 | 2.06 ± 0.59 |