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. 2018 Aug 3;9:1759. doi: 10.3389/fmicb.2018.01759

FIGURE 3.

FIGURE 3

Growth of C. thermautotrophica strain 019 with Fe(III)-containing silica mineral and rock on lactate under 100% CO. Diamonds – growth with glauconite at high Eh (–90 mV); squares – growth with diatomite at high Eh; circles – control growth without external electron acceptors at low Eh (–430 mV).