Fig. 2: Growth and activity of Methanococcus voltae provided with mackinawite as the sole iron and sulfur source. | The ISME Journal

Fig. 2: Growth and activity of Methanococcus voltae provided with mackinawite as the sole iron and sulfur source.

From: Reductive dissolution of pyrite by methanogenic archaea

Fig. 2

Production of cells (a) and methane (b) for M. voltae cultures. Cells were grown with synthetic mackinawite (FeS) added to a final concentration of 2 mM Fe with or without added 1 mM added HS−. Cells provided with Fe(II) and HS− served as the positive control. CH4, methane; Fe(II), ferrous iron; HS−, sulfide; FeS, mackinawite. Data shown are the mean values for each condition with error bars reflecting the standard deviation of three replicate biological reactors. See Extended Data File 1 for CH4 and HS− data.

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