Figure 7: Changes in metabolism under in silico CO2 elevation (currency metabolites are not in excess). Heat map plotting shows the metabolic changes in (1i) plant cells and (2) tuber cell under in silico CO2 elevation by assuming non-excess concentrations of currency metabolites: (a) the metabolite concentrations and (b) the fluxes through enzymes in the starch biosynthesis pathway. The colour intensity and tones represent magnitude and direction of metabolic changes, respectively, with the magnitude of change ranging from grey (reference) to red (more deviation from the reference in positive direction) or green (more deviation from the reference in negative direction).