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

K. Takahashi, Atsuko Takamatsu, Z. S. Hu, Y. Tsuchiya

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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
JournalProtoplasma
Volume197
Issue number1-2
Publication statusPublished - 1997
Externally publishedYes

Fingerprint

Physarum
animal communication
oscillation
Physarum polycephalum
Myosins
Actin Cytoskeleton
myosin
microfilaments
shortenings

Keywords

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

ASJC Scopus subject areas

  • Plant Science
  • Cell Biology

Cite this

Asymmetry in the self-sustained oscillation of Physarum plasmodial strands : Rapid communication. / Takahashi, K.; Takamatsu, Atsuko; Hu, Z. S.; Tsuchiya, Y.

In: Protoplasma, Vol. 197, No. 1-2, 1997, p. 132-135.

Research output: Contribution to journalArticle

Takahashi, K. ; Takamatsu, Atsuko ; Hu, Z. S. ; Tsuchiya, Y. / Asymmetry in the self-sustained oscillation of Physarum plasmodial strands : Rapid communication. In: Protoplasma. 1997 ; Vol. 197, No. 1-2. pp. 132-135.
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