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Redox Potential and Lactate Oxidation by Newly Isolated Oil Field NRB Strains

Supplementary Figure 1 illustrates the nitrate-dependent oxidation of lactate (A, C) and sulfide (B) by recently isolated oil field NRB strains: Sulfurospirillum sp. strain KW (A, B) and Thauera sp. strain N2 (C). The figure presents concentrations of nitrate, nitrite, ammonium, lactate, acetate, sulfide, and sulfate, along with their respective redox potentials (Eh). Batch cultures were performed in duplicate, with error bars indicating average deviations when larger than the symbols. This study enhances our understanding of microbial redox processes in oil field environments.

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Redox Potential and Lactate Oxidation by Newly Isolated Oil Field NRB Strains

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  1. A 12 B 11 10 concentration (mM) redox potential (mV) 4 2 0 C time (h) Supplementary Fig. 1. Nitrate-dependent oxidation of lactate (A, C) or sulfide (B) by newly isolated oil field NRB Sulfurospirillum sp. strain KW (A, B) and Thauera sp. strain N2 (C). Concentrations of nitrate (), nitrite (), ammonium (), lactate (), acetate (), sulfide () and sulfate (), as well as Eh (----) are shown. All batch cultures were done in duplicate, with average deviation shown when error bars exceeded the size of the symbols.

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