Metachronal waves in concentrations of swimming Turbatrix aceti nematodes and an oscillator chain model for their coordinated motions
Metachronal waves in concentrations of swimming Turbatrix aceti nematodes and an oscillator chain model for their coordinated motions
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游动的Turbatrix aceti线虫集中的异时波及其协调运动的振荡器链模型
DOI：
10.1103/physreve.104.014412
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发表时间：
2021
影响因子：
2.4
通讯作者：
McGaffigan, Sonia
中科院分区：
文献类型：
--
作者：
Quillen, A. C.;Peshkov, A.;Wright, Esteban;McGaffigan, Sonia
在高浓度下，自由游动的线虫被称为醋鳗（Turbatrix aceti），共同表现出异时波附近的边界。我们发现，集体行波的频率低于自由游动的生物。我们探索模型的基础上的一个链的振荡器与最近邻的相互作用，抑制振荡器的相速度。每个振子的相位代表鳗鱼头部围绕其平均位置来回运动的相位。一个强相互作用的有向链模型模拟生物体之间的空间排斥鲁棒地给出行波状态，并且可以近似地匹配所观察到的行波的波长和振荡频率。我们预测身体的形状，假设波传播鳗鱼身体以恒定的速度。相位振荡器模型，阻碍鳗鱼头部重叠也减少了密切的相互作用，整个鳗鱼机构。
At high concentration, free swimming nematodes known as vinegar eels (Turbatrix aceti), collectively exhibit metachronal waves near a boundary. We find that the frequency of the collective traveling wave is lower than that of the freely swimming organisms. We explore models based on a chain of oscillators with nearest-neighbor interactions that inhibit oscillator phase velocity. The phase of each oscillator represents the phase of the motion of the eel's head back and forth about its mean position. A strongly interacting directed chain model mimicking steric repulsion between organisms robustly gives traveling wave states and can approximately match the observed wavelength and oscillation frequency of the observed traveling wave. We predict body shapes assuming that waves propagate down the eel body at a constant speed. The phase oscillator model that impedes eel head overlaps also reduces close interactions throughout the eel bodies.