TABLE S2 Phylum-level classification of the BLAST-hit genes assigned to bacteria
Taxonomic group
Actinobacteria
Aquificae
Bacteroidetes/Chlorobi group
- Bacteroidetes
- Chlorobi
- Inganvibacteria
Chlamydiae/Verrucomicrobia group
- Chlamydiae
- Lentisphaerae
- Verrucomicrobia
Chloroflexi
Cyanobacteria
Deferribacteres
Deinococcus-Thermus
Environmental samples
Fibrobacteres/Acidobacteria group
- Acidobacteria
Firmicutes
Fusobacteria
Gemmatimonadetes
Nitrospirae
Planctomycetes
Proteobacteria
- Alphaproteobacteria
- Betaproteobacteria
- delta/epsilon subdivision
- Deltaproteobacteria
- Epsilonproteobacteria
- Gammaproteobacteria
Spirochaetes
Synergistetes
Thermotogae
Unclassified bacteria
Total bacteria
Bulk soil
Anode-associated soil
AM-anode biofilm GM-anode biofilm
Reads Percent Reads Percent Reads Percent Reads Percent
0.5
0
0
0.5
1.0
0.4
0
2.5
0.0
1.1
0.8
0
0.2
0.1
0.4
1.5
1.5
0.8
0
0.4
6.1
0
8
240
0.4 42
49.2 5410
13
41
96
96
93
56
0
0
54
109
51
0
280
8
235
80
10
125
15.5 2382
12.0
3.6
703
471
3.6
0
468
0
2.3
0.1
0
405
8
5
0 0
25.0 2446
86.7 9141
0
33
482
33
3881
7
35
122
121
63
42
0
0
41
75
32
0
196
0
89
64
0
18
1225
946
285
282
0
181
9
0
0
1710
6839
2.5 3108
0.1
2.1
0.7
0.1
1.1
5
418
331
36
13
0.5 1420
0.0 8
0.0 5
0.5 1404
1.0 97
0.5
0.0
92
0
0.1 17
0.4 37
0.9 2451
0.9 2449
0.8 500
0.0
0.1
2.2
0
12
19
0.4 126
49.2 17043
21.7 452
6.4 6193
4.3 7119
4.3 7105
0.0 9
3.7 1695
0.1
0.0
37
15
0.0 13
26.8 4089
83.2 29499
8.7
0.0
1.2
0.9
0.1
0.0
4.0 1194
0.0 0
0.0 5
3.9 1185
0.3 1111
0.3
0.0
119
6
413
0
188
154
26
6
0.0
0.1
6.9
21
29
106
6.9 12
1.4 2443
0.0
0.0
0.1
5
0
12
0.4 86
47.7 20541
1.3 1796
17.3 1944
19.9 9868
19.9 9845
0.0 20
4.7 5171
0.1
0.0
54
12
0.0 25
13.9 3776
82.6 30141
0.0
0.0
0.0
0.2
57.8
0.1
0.1
0.3
0.0
6.9
3.4
0.0
0.0
3.3
3.1
0.3
0.0
1.2
0.0
0.5
0.4
0.1
0.0
14.5
0.2
0.0
0.1
12.5
84.7
5.0
5.5
27.7
27.7
0.1