Metachronal waves in concentrations of swimming Turbatrix aceti nematodes and an oscillator chain model for their coordinated motions
| Autor: | Anton Peshkov, Sonia McGaffigan, Esteban Wright, Alice C. Quillen |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Phase (waves)
FOS: Physical sciences Condensed Matter - Soft Condensed Matter 01 natural sciences Molecular physics 03 medical and health sciences Position (vector) 0103 physical sciences 14. Life underwater Physics - Biological Physics 010306 general physics 030304 developmental biology Turbatrix aceti Physics High concentration 0303 health sciences Chain model biology Oscillation biology.organism_classification Nonlinear Sciences - Adaptation and Self-Organizing Systems Wavelength Biological Physics (physics.bio-ph) Soft Condensed Matter (cond-mat.soft) Phase velocity Adaptation and Self-Organizing Systems (nlin.AO) |
| Popis: | At high concentration, free swimming nematodes known as vinegar eels ({\it 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. Movies https://youtu.be/jETmIRah-mo and https://youtu.be/_HzUbkXZRKw |
| Databáze: | OpenAIRE |
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