Energy-saving with low dimensional network in Physarum plasmodium

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

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    2 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

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    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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