Figure 3.

Growth curves of L. plantarum and its mutant derivatives. NZ7100 (WT, lines), acm2 mutant (Acm2^-, open triangles), lytA mutant (LytA^-, black triangles) and lytH mutant (LytH^-, open circles) grown in MRS (A), CDM (B) and SCDM (C) are presented. Mean values ± standard deviations (n=3). OD₆₀₀ values of the lytA mutant (MRS, CDM, and SCDM) and the lytH mutant (CDM) are all significantly different from the WT between 3 and 15 h. Significance is based on Student’s t test with a P value of <0.001.