期刊
BIOPHYSICAL CHEMISTRY
卷 92, 期 1-2, 页码 47-52出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0301-4622(01)00179-X
关键词
morphogenesis; oscillation; amoeboid movement; optimization; Physarum; maze
We have studied how the plasmodium of Physarum polycephalum, a large amoeboid cell, is able to track the shortest path between two selected points in a labyrinth. When nutrients are supplied at these points to a sheet-like plasmodium extended fully in a maze, the organism forms a single tube which connects the two sites via the shortest route. During the path finding, plasmodial parts in dead ends of the maze shrink and finally the tube with the minimum-length is selected from the existing possibilities. A simple cellular mechanism based on interacting cellular rhythms may describe the experimental observations. (C) 2001 Elsevier Science B.V. All rights reserved.
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