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Comparison of the MPNs of CO2-reducing methanogenic, homoacetogenic, and formate-producing microorganisms in the different hindgut sections of C. umbratus (A) with the potential rates of H2-dependent methanogenesis, acetogenesis, and formicogenesis from CO2 in the respective hindgut sections of C. orthognathus (B). The rates for methanogenesis are from the companion paper (33). n.d., not determined. For definitions of the sections, see Fig. 1 in the companion paper (33).
