Figure 2

Relative differences of the measured fluxes ( ΔF ) and of the flux efficiencies for bacteria (a, b) and plant cells (c). The coefficients of flux efficiency were calculated according to the Materials and Methods from the matrix of EFMs computed from the networks described in figures 1a (C. glutamicum ) and 1b (B. napus). The fluxes measured on C. glutamicum grown in the presence of different carbon sources (glucose, fructose, sucrose) and on B. Napus embryos grown in the presence of mineral (ammonium plus nitrate) or organic (amino acids) nitrogen sources, were compiled from [4, 5] and [22] respectively. For each reaction, the relative difference of the flux efficiency and that of the measured flux (ΔF) was expressed taking the glucose (Sg, C. glutamicum, a, b) and the organic nitrogen (Naa, B. napus, c) conditions as references.