Dresden 2017 – scientific programme

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BP: Fachverband Biologische Physik

BP 7: Posters - Mechanics and Dynamics of 3D Tissues (Focus Session)

BP 7.2: Poster

Monday, March 20, 2017, 17:30–19:30, P3

Morphogenesis control using mechanical stress — •Jason Khadka, Jean-Daniel Julien, and Karen Alim — Max Planck Institute for Dynamics and Self-Organization

A major question in developmental biology is to understand how reproducible shapes arise from the collective behaviour of individual cells. Can mechanical interaction of cells within a tissue counteract randomness? We address this question in the shoot tip of plants. It has been shown that cortical microtubules in plant cells respond to mechanical stresses within a tissue. Cortical microtubules pattern down cell wall mechanics and thus mechanical stresses feed back on the mechanics of cell wall and cell growth. Here, we study how this mechanical feedback counteracts randomness in cell growth and thus gives rise to robust shape formation in the shoot tip. We present a three dimensional vertex model of plant tissue growth. Evaluating this model at different mechanical feedback strengths we assess the role of mechanics for reproducible three-dimensional shape formation.