Asymmetry in the self-sustained oscillation of Physarum plasmodial strands: Rapid communication

K. Takahashi*, A. Takamatsu, Z. S. Hu, Y. Tsuchiya

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The characteristics of the self-sustained oscillation in the plasmodial strand of Physarum polycephalum have been investigated in one steady and two transient conditions. An isolated Physarum strand changes its length periodically when it is suspended. In the behaviour of the self-sustained oscillation under the conditions, we provide the first demonstration that the changes in the periods of the oscillation can be ascribed to effects on the shortening phase, while the lengthening periods are almost unaffected. This result means that the asymmetric self-sustained oscillation of the Physarum strand is composed of an active contracting process, presumably due to actin filaments and myosin-like molecules in the strand, and a passive lengthening process which is merely an extension of the strand under a load.

Original languageEnglish
Pages (from-to)132-135
Number of pages4
Issue number1-2
Publication statusPublished - 1997 Jan 1
Externally publishedYes


  • Asymmetric self-sustained oscillation
  • Information processing
  • Physarum polycephalum

ASJC Scopus subject areas

  • Plant Science
  • Cell Biology


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