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このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10445/4406

タイトル: Effects of amount of food on path selection in the transport network of an amoeboid organsim
著者: Nakagaki, Toshiyuki
Saigusa, Tetsu
Tero, Atsushi
Kobayashi, Ryo
アブストラクト: We studied the effect of the size of food sources (FSs) presented to the true slime mould Physarum polycephalum on the tubular networks formed by the organism to absorb nutrient. The amount of plasmodium gathering at an FS was shown to be proportional to both the concentration of nutrient and the surface area of the FS. We presented two FSs to test which connection the organism selected in response to varying amounts of food and derived a simple rule for connection persistence: the longer connection collapses earlier. A mathematical model for tube selection in response to amount of food was derived and predicted our experimental findings regarding the choice of connection. When three FSs were presented to the organism, the longer tubes were also the first to collapse, explained by the relative probability of disconnection. The size of the FS is thus a key parameter determining network formation.
研究業績種別: 原著論文/Original Paper
資料種別: Journal Article
査読有無: あり/yes
単著共著: 共著/joint
発表雑誌名,発表学会名など: Proceedings of Int. Symp. On Topological Aspects of Critical Systems and Networks
開始ページ: 94
終了ページ: 100
年月日: 2007年
出版社: World Scientific Publishing Co.
出現コレクション:中垣 俊之





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