Coupling water fluxes with cell wall mechanics in a multicellular model of plant development
Fig 3
Growth of tissue with heterogeneous mechanical parameters, see S6 Text.
a) (a) Initial state for (REF): walls are under tension because of turgor and have reached their yield deformation. At t = 0, the walls of the cells marked with a white star are softened (the elastic modulus is divided by two). (b) Time evolution of the total volume. The dashtype of the lines distinguishes the parameters sets; the same dashtype convention is used in (c) and (d). (c) Time evolution of turgor pressure of bump cells (red) and other cells (blue). (d) Time evolution of relative growth rate of bump cells (red) and other cells (blue). (e-l) Turgor and relative growth rate maps of parameters sets (REF) ((e-f)), (PM-) ((g-h)), (CC-) ((i-j)), and (ALPHA+) ((k-l)), at the time when the volume of the bump cells has increased by a factor 5: t = 51h for (REF), t = 33h for (PM-), t = 80h for (CC-), t = 14.8h for (ALPHA+). The arrows represent the intensity and direction of cell-cell water fluxes; the scale for arrows is the same for (REF), (PM-) and (CC-) and close to 4 times higher for (ALPHA+).