Fig. 5: Relationships between plant growth and rate of N2-fixation or nodulation. | Nature Communications

Fig. 5: Relationships between plant growth and rate of N2-fixation or nodulation.

From: Genome-scale metabolic reconstruction of the symbiosis between a leguminous plant and a nitrogen-fixing bacterium

Fig. 5

In all panels, the sole source of nitrogen for the plant is through N2-fixation. a Pareto frontiers showing the relationship between the N2-fixation efficiency (with a constant rate of nodulation of 2%) and the rate of plant biomass production using ViNE with default parameters (blue) or no limit on zone III oxygen usage (red). b The relationship between the rate of nodulation and the rate of plant biomass production (with a constant N2-fixation efficiency of 150 µmol h−1 (g nodule dry weight)−1). c The effect of the N2-fixation efficiency on the rate of plant growth, with the amount of nodule biomass optimized to maximize plant growth and without a limit on zone III oxygen uptake (see Supplementary Fig. 3 for simulations with an oxygen uptake limit). Nodule biomass was either uncapped (red) or limited to 10% (blue) or 5% (purple) of the overall plant + nodule biomass.

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