Nonlinear dynamics of homeothermic temperature control in skunk cabbage, Symplocarpus foetidus -: art. no. 051909
Nonlinear dynamics of homeothermic temperature control in skunk cabbage, Symplocarpus foetidus -: art. no. 051909
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DOI：
10.1103/physreve.72.051909
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发表时间：
2005-11-01
影响因子：
2.4
通讯作者：
Ito, K
中科院分区：
文献类型：
--
作者：
Ito, T;Ito, K
某些原始植物在开花期间经历精心安排的温度控制。臭鼬卷心菜，Symplocarpus foetidus，已被证明即使在环境温度降至冰点以下时也能保持20摄氏度左右的内部温度。然而，目前还不清楚是否有一个独特的算法控制恒温行为的S。foetidus，或者这样的算法是否可能表现出线性或非线性的体温调节动力学。在这里，我们报告的基本动力学的温度控制在S。利用非线性预测、吸引子和关联维数分析等方法对恶臭进行预测。结果表明，S. foetidus是由低维混沌动力学，其几何显示出一个奇怪的吸引子命名为“Zazen吸引子。“我们的数据表明，S.恶臭是与生俱来的，是对自然环境的适应性反应。
Certain primitive plants undergo orchestrated temperature control during flowering. Skunk cabbage, Symplocarpus foetidus, has been demonstrated to maintain an internal temperature of around 20 degrees C even when the ambient temperature drops below freezing. However, it is not clear whether a unique algorithm controls the homeothermic behavior of S. foetidus, or whether such an algorithm might exhibit linear or nonlinear thermoregulatory dynamics. Here we report the underlying dynamics of temperature control in S. foetidus using nonlinear forecasting, attractor and correlation dimension analyses. It was shown that thermoregulation in S. foetidus was governed by low-dimensional chaotic dynamics, the geometry of which showed a strange attractor named the "Zazen attractor." Our data suggest that the chaotic thermoregulation in S. foetidus is inherent and that it is an adaptive response to the natural environment.