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Flow rate driven by peristaltic movement in plasmodial tube of Physarum polycephalum

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Title: Flow rate driven by peristaltic movement in plasmodial tube of Physarum polycephalum
Authors: Yamada, Hiroyasu Browse this author
Nakagaki, Toshiyuki Browse this author
Keywords: Physarum
peristaltic movement
fluid mechanics
circulation
PACS=47.70.Fw
PACS=87.17.Aa
PACS=47.63.-b
Issue Date: 3-Jul-2008
Publisher: American Institute of Physics
Journal Title: American Institute of Physics Conference Proceedings
Volume: 1028
Start Page: 210
End Page: 214
Publisher DOI: 10.1063/1.2965090
Abstract: We report a theoretical analysis of protoplasmic streaming driven by peristaltic movement in an elastic tube of an amoeba-like organism. The plasmodium of Physarum polycephalum, a true slime mold, is a large amoeboid organism that adopts a sheet-like form with a tubular network. The network extends throughout the plasmodium and enables the transport and circulation of chemical signals and nutrients. This tubular flow is driven by periodically propagating waves of active contraction of the tube cortex, a process known as peristaltic movement. We derive the relationship between the phase velocity of the contraction wave and the flow rate, and we discuss the physiological implications of this relationship.
Rights: Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Type: article (author version)
URI: http://hdl.handle.net/2115/34764
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 中垣 俊之

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