SAM architecture and its representation in the model.

<p>(A) An image of the SAM and the immediate surrounding area. The regions of interest are marked with colored boundaries. (B) Schematic representation of WUS and CLV domains; the three dimensional SAM, consisting of cells of various shapes and sizes, is modeled by a two dimensional grid consisting of identical blocks representing cells. The field of cells extend farther in lateral and basal directions. <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0147830#pone.0147830.s002" target="_blank">S2 Fig</a> depicts the complete cellular template used for simulations.