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. 2016 Feb 23;7:167. doi: 10.3389/fmicb.2016.00167

Figure 2.

Figure 2

H2 production by T. paralvinellae (A) and P. furiosus (B) in 0.5% maltose (○), 0.5% tryptone (Inline graphic), 0.5% maltose + 0.05% tryptone (●), 0.5% maltose + 10 mM acetate (Inline graphic), and 0.5% maltose at pH 5.0 (Inline graphic). Error bars represent the standard error.