Fig. 3.

Increase of D₂O concentration inside the seminal root segments, proximal and distal segments of crown roots, and their laterals measured during the night-time. The concentrations were averaged along the segments immersed in D₂O. The experiments were simulated, solving numerically the model illustrated in Supplementary Fig. S1 at JXB online assuming no convection. The best fits are plotted as solid lines. (This figure is available in color at JXB online.)