Figure 2
From: Generation and Characterization of Acid Tolerant Fibrobacter succinogenes S85
Growth curves of wild-type and acid tolerant strains of F. succinogenes in cellobiose medium. A growth curve of the acid tolerant F. succinogenes grown in 3 g/L cellobiose medium (initial pH 6.90 was measured by cell density readings and plotted against the wild type. The two had the same doubling time but the wild type reached a higher density (OD > 1.2) in late log phase while the acid-tolerant culture grew to OD around 0.7.
