Quantification of cells able to divide and average division parameters of the wild-type and deletion mutant strains after oxygen exposure.

Strains were cultured with constant 0.02% O2 gas mixture sparging followed by a switch to anaerobic condition. Data are mean values of three independent experiments ± SD. Statistical analysis using t-test was used to compared means. a, b, c: Significant differences. Quantification of cells able to divide and average division parameters of the wild-type and deletion mutant strains after oxygen exposure.