Energy-saving with low dimensional network in Physarum plasmodium

Atsuko Takamatsu, Takuma Gomi, Tatsuya Endo, Tomo Hirai, Takato Sasaki

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

An adaptation process in the transportation network of Physarum plasmodium was investigated by measuring oxygen consumption during network formation. Simultaneously, the fractal dimension as a measure of network structure was estimated. Oxygen consumption decreased during the development of the network, whereas the network structure changed from a thin mesh-type to a thick dendritic type. Our data suggested that the morphology of the plasmodial network governed energy consumption; a low dimensional network in the sense of the fractal dimension reduced energy consumption. These data were supported by experimental results excluding biological reasons, such as differences in starvation/nutrient-fullness states, and aspects of mitochondrial distribution. Model analysis using the Physarum algorithm with volume conservation constraints confirmed the above findings.

Original languageEnglish
Article number154003
JournalJournal of Physics D: Applied Physics
Volume50
Issue number15
DOIs
Publication statusPublished - 2017 Mar 14

Keywords

  • mathematical model
  • mitochondria
  • optimization
  • oxygen consumption
  • transportation network

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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