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Table 4 Average gene copy numbers per mL digester sludge of total bacteria and three syntrophic acetate-oxidizing bacteria species

From: Trace element and temperature effects on microbial communities and links to biogas digester performance at high ammonia levels

Digester

Total bacteria

S. schinkii

T. acetatoxydans

C. ultunense

D37

4.6 ± 4.1 × 109

3.0 ± 3.2 × 108

2.1 ± 3.1 × 107

8.2 ± 8.0 × 106

D42

8.8 ± 5.6 × 109

10.0 ± 7.0 × 108

3.0 ± 2.3 × 108

5.5 ± 2.8 × 107

DTE37

6.8 ± 6.2 × 109

7.7 ± 6.2 × 106

0.9 ± 1.0 × 107

6.1 ± 3.4 × 106

DTE42

4.5 ± 3.8 × 109

6.1 ± 1.7 × 107

6.2 ± 4.6 × 107

5.4 ± 2.4 × 107

  1. qPCR analyses were performed in triplicate DNA extractions from samples withdrawn on days 21, 49, 77, 126, 168, 253 and 280 of operation