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| Poster, Friday, 19:00 |
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| Spatial oscillations during
reorganization of Physarum polycephalum protoplasmic droplets
Ulrike Strachauer, Marcus J. B. Hauser
Otto-von-Guericke University Magdeburg,
Institute of Experimental Physics, Biophysics Group, Magdeburg, Germany |
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The plasmodium of the slime mould Physarum polycephalum forms a
plasmodium consists of a single, multinucleate giant amoeboid cell. This
syncytium forms a two-dimensional vein network which extends in search
of food. In the veins the protoplasm is transported periodically back and
forth by peristaltic pumping. Protoplasmic droplets can be obtained
by puncturing a vein of the plasmodium and extracting protoplasm. Within
a few seconds the protoplasmic droplet forms a new cell membrane, and the
droplet begins to reorganize itself to a new cell. The reorganization is
accompanied by a series of oscillations, which are monitored and analyzed
by Karhunen-Loève decomposition of the oscillatory modes. Some of
these modes are linked to functional behaviour. |
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