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Elastic domains regulate growth and organogenesis in the plant shoot apical meristem

Kierzkowski, Daniel ; Nakayama, Naomi ; Routier-Kierzkowska, Anne-Lise ; Weber, Alain ; Bayer, Emmanuelle ; Schorderet, Martine ; Reinhardt, Didier ; Kuhlemeier, Cris ; Smith, Richard S.

In: Science, 2012, vol. 335, p. 1096

Although genetic control of morphogenesis is well established, elaboration of complex shapes requires changes in the mechanical properties of cells. In plants, the first visible sign of leaf formation is a bulge on the flank of the shoot apical meristem. Bulging results from local relaxation of cell walls, which causes them to yield to internal hydrostatic pressure. By manipulation of tissue...