FIG. 4.
Influence of var-cse variability on Cse cell segregation activity. (A) Results of counting numbers of cells per chain. A total of 1,000 cells were counted from three independent cultures. (B) Cell morphology of S. thermophilus strain LMG18311. Cells were photographed or counted in stationary phase after 20 h of growth. After this period of growth, OD600 values reached 0.66 ± 0.074, 1.1 ± 0.014, 1.1 ± 0.032, and 0.87 ± 0.049, respectively, for strains CNRZ368, LMG18311, LMG18311-csevarCNRZ368, and LMG18311-Δcse.