Measurement of protoplasmic streaming over the entire body of Physarum plasmodium, and estimation of the transport and mixing of protoplasma through the intricate vein network

Yo Sato, Charles Fosseprez, Yukinori Nishigami, Katsuhiko Sato, Hiroshi Orihara, Toshiyuki Nakagaki

研究成果: ジャーナルへの寄稿学術論文査読

抄録

Transport networks spanning the entire body of an organism are key infrastructures for achieving a functional system and facilitating the distribution of nutrients and signals. The large amoeba-like organism Physarum polycephalum has gained attention as a useful model for studying biological transport networks owing to its visible and rapidly adapting vein structure. Using particle-tracking velocimetry, we measured the flow velocity of protoplasmic streaming over the entire body of Physarum plasmodia during the development of its intricate vein network. Based on these measurements, we estimated how the protoplasm is transported and mixed throughout the body. Our findings suggest that the vein network significantly enhances effective mixing of the protoplasm throughout the organism, which may have important physiological implications for nutrient distribution and signaling.

本文言語英語
ページ(範囲)e220002
ジャーナルBiophysics and physicobiology
22
1
DOI
出版ステータス出版済み - 2025

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