Regensburg 2013 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 24: Posters: Physics of Cells
BP 24.3: Poster
Mittwoch, 13. März 2013, 17:30–19:30, Poster C
Spatio-temporal dynamics of plasmodial migration of the slime mould Physarum polycephalum — •Beatrice Rodiek1, Tetsuo Ueda2, and Marcus J. B. Hauser1 — 1Abteilung Biophysik, Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany — 2Research Institute of Electronic Science, Hokkaido University, Sapporo, Japan
Spatio-temporal self-organization of large amoeboid plasmodial cells of the slime mould Physarum polycephalum was studied in relation to cell locomotion. During locomotion, the slime mould shows rhythmic contraction and expansion waves. We observe distinct patterns in wild-type strain and in one behavioural mutant. The pseudopodium extended either in a periodic back-and-forth manner or in a forward-stop fashion. Correspondingly, the propagation of the contraction waves either reached the vicinity of the front or left a stationary, non-oscillatory region near the front. Thus, the genetic differences in the cells of the same species may translate into different physical patterns of locomotion.