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Physiological experiments of M. schaedleri ASF 457 MCS. Pure cultures were grown in AMM with various amounts of nitrate (A) or combinations of nitrate, formate, fumarate, and hydrogen (B). Growth was determined spectrophotometrically (at 600 nm) and was normalized by subtracting the background absorbance of the medium. Means and standard deviations of results from three replicate experiments are shown.
