Fig. 2.

Cell dry weight and production of succinic acid by starter strains, mutant strains, and genome-shuffled strains in shake-flasks fermentation at pH 4.8. (A) Production of succinic acid. (B) Cell dry weight. AS-R2: starter strains; AS-UV1, AS-UV2: UV mutant strains; AS-NTG1, AS-NTG2: NTG mutant strains; AS-F11 to AS-F18: strains from the first round of genome shuffling; AS-F21 to AS-F24: strains from the second round of genome shuffling; AS-F31 to AS-F34: strains from the third round of genome shuffling