Fig. 1

Diauxic growth as a typical manifestation of carbon catabolite repression in bacteria (experimental data are taken from [14]). The plot shows the sequential uptake of glucose (blue circles) and lactose (blue squares) by growing Escherichia coli bacteria on a mixture of carbon sources. This leads to the two-stage accumulation of biomass (red circles) at a high growth rate (on glucose) and a lower growth rate (on lactose) until all carbon sources have been exhausted