Information processing for the organization of chemotactic behavior ofPhysarum polycephalum studied by micro-thermography
Information processing for the organization of chemotactic behavior ofPhysarum polycephalum studied by micro-thermography
复制标题
显微热成像研究多头绒泡趋化行为组织的信息处理
DOI：
10.1007/bf01281018
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发表时间：
1987
期刊：
影响因子：
2.9
通讯作者：
H. Shimizu
中科院分区：
文献类型：
--
作者：
H. Tanaka;H. Yoshimura;Y. Miyake;J. Imaizumi;K. Nagayama;H. Shimizu
用灵敏的热像仪测量了多头绒泡菌原生质链细胞表面温度振荡的时空分布。同时研究了钢绞线的纵向张力。在没有化学刺激的情况下，在链的不同部分观察到的温度振荡的相被携带，几乎是重合的相。温度和张力振荡是同步的，尽管它们之间的相位差偶尔会发生变化。在局部化学刺激下，温度振荡的阶段在原虫将被诱导迁移到的部分提前。然后，温度和张力振荡之间的相位变得恒定。讨论了原虫将化学刺激的局部信息处理为全局信息进行迁移的机制。
SummaryThe spatial and temporal pattern of oscillating temperatures on the cell surface of a plasmodial strand ofPhysarum polycephalum was measured with a sensitive thermal image camera. The longitudinal tension of the strand was studied simultaneously. In the absence of chemical stimulation, the phases of the temperature oscillation observed at various portions of the strand were entrained with almost coincidental phase. The temperature and tension oscillation were synchronized, although the phase difference between them was occasionally changed. With local chemical stimulation, the phase of the temperature oscillation advanced in the portion to which the plasmodium would be induced to migrate. The phases between temperature and tension oscillations then became constant. The mechanism by which the plasmodium processes local information of chemical stimulus to global information for the migration is discussed.