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Fig. 4 | Biotechnology for Biofuels

Fig. 4

From: Bioreactor microbial ecosystems with differentiated methanogenic phenol biodegradation and competitive metabolic pathways unraveled with genome-resolved metagenomics

Fig. 4

Anaerobic phenol and benzoate pathways (a) and the Pps-Ppc operons (b). a Phenol is anaerobically degraded to benzoyl-CoA, which is then degraded via ‘Dch-Had-Oah’ pathway and beta oxidation to butyrate and acetate. b The pathways can be conducted by anaerobes under methanogenic, nitrate-reducing, sulfate-reducing and iron-reducing conditions. The percentage under each enzyme-coding gene indicates its similarity (%) to the gene counterpart in Syntrophorhabdus aromaticivorans strain UI. OHB 4-hydroxybenzoate, 4-BCL 4-hydroxybenzoate-CoA ligase, 4-Hbcr 4-hydroxybenzoyl-CoA reductase, BCL Benzoate-CoA ligase, BCR Benzoyl-CoA reductase, Dch Cyclohexa-1,5-dienecarbonyl-CoA hydratase, PaaK putative phenylacetate-CoA ligase, Had 6-hydroxycylohex-1-en-1-carbonyl-CoA dehydrogenase, PaaK putative phenylacetate-CoA ligase, Oah 6-oxo-cyclohex-1-ene-carbonyl-CoA hydrolase, PaaK putative phenylacetate-CoA ligase, ACSL long-chain acyl-CoA synthetase

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