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Anaerobic survival at an acidic pH. (A) Anaerobic survival in LBG medium adjusted to a pH of 6.0 (circles), 6.5 (triangles), or 7.0 (squares). (B) Change in pH and anaerobic survival in phosphoric acid-buffered LBG adjusted to a pH of 6.0, 6.5, or 7.0 (indicated as in panel A). Error bars represent standard deviations for three independent cultures per time point.
