Fig. 4

DS induced auxin accumulation in the outer cortical layers in a background with a larger cortical auxin supply. a screen over different h and p values as in Fig. 2 f, but with a different PIN layout (B; see also: [21]) that results in higher cortical auxin availability than with the default PIN layout. Because of this higher cortical auxin availability, the DS signal also induces substantial auxin accumulation in the outer cortical layers. All figures are snapshots at T = 1 hour. The yellow border indicates reasonable parameter values for cortical auxin accumulation. b PIN layout. In absence of DS, P _{e f f,i n t r} , the intrinsic effective efflux permeability, is one of three levels, as indicated: high (red) = 20 μm/s, low (cyan) = 5 μm/s, bg (“background”, white) = 1 μm/s