In a second step, we expand the chemo-mechanical model in order to model the manifold contraction patterns observed experimentally in protoplasmic droplets of Physarum polycephalum. To achieve this, we combine a biophysically realistic model of a calcium oscillator with the poroelastic model derived in the first part of the talk and assume that the active tension is regulated by calcium. With the help of two-dimensional simulations the model is shown to reproduce the contraction patterns observed in in protoplasmic droplets as well as a number of other traveling and standing wave patterns.
Co-authors: Markus Radszuweit (PTB Berlin), Sergio Alonso (PTB Berlin), Harald Engel (TU Berlin )
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