Sulfate reduction and methanogenesis in microcosm 13PW_S2V3_22 (Fig. S1), nitrate reduction, sulfate reduction, and methanogenesis in microcosm E_S2N4V3_12 (Fig. S2), nitrate reduction and sulfate reduction in microcosm E_S2N8V3_13 (Fig. S3), nitrate reduction and sulfate reduction microcosm E_S2N13V3_14 (Fig. S4), and relationship between the logarithm of the MPN for SRB with lactate versus that with propionate as the electron donor for sulfate reduction (Fig. S5).
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