Figure 6From: Antibiotic-free segregational plasmid stabilization in Escherichia coli owing to the knockout of triosephosphate isomerase (tpiA) Long-term operation of a chemostat for analysing plasmid maintenance. Plasmid concentrations from the cells were compared for a chemostat with the control culture E. coli JM109-p582 and the auxotrophic system E. coli JW3890-2-pFC4 under antibiotic-free conditions.Back to article page