open access

https://hdl.handle.net/2115/34764

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

英語

PACS=47.63.-b

2008-07-03

American Institute of Physics

American Institute of Physics Conference Proceedings

1028

210-214

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.

学術雑誌論文

Accepted Manuscript

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.

0094-243X