Fig. 1

Temporal expression pattern of cobalamin biosynthesis-related genes in response to copper (0.5 mM) of L. monocytogenes List2-2 growing at 8 °C. A cysG, B cbiP, C cbiB, D eutV. Data were expressed as fold-change between copper treated at different times and untreated (time zero without copper). Different letters indicate significant differences comparing different times (1, 6 and 24 h). P-value: < 0.05