"O Volvox, how dost thou turn thyself inside out?"

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• Pierre Haas (DAMTP)
• Friday 06 November 2015, 15:00-16:00
• MR13.

If you have a question about this talk, please contact Christian Lund.

Deformations of cell sheets pervade early animal development, but they arise from an intricate interplay of cell shape changes, cell migration, cell intercalation, and cell division. We explore this interplay of geometry and elasticity in what is perhaps the simplest instance of cell sheet folding: the “inversion” process in the green alga Volvox, whose embryos, in a process hypothesised to be driven by cell shape changes alone, must turn themselves inside out to complete their development. An elastic model, in which cell shape changes correspond to local variations of intrinsic curvature and stretches of an elastic shell, reproduces the dynamics and sheds light on the underlying mechanics of inversion.

This talk is part of the Junior Geometry Seminar series.

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