The effect of inhibitors of cellular respiration on self-oscillating motility in plasmodium Physarum polycephalum

作     者：Avsievich, T.I. Frolov, S.V. Proskurin, S.G. 

作者机构：Department of Biomedical Engineering Tambov State Technical University ul. Michurinskaya 112d Tambov 392032 Russian Federation 

出 版 物：《Biophysics (Russian Federation)》 (Biophysics)

年 卷 期：2016年第61卷第1期

页      面：59-66页

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 071010[理学-生物化学与分子生物学] 07[理学] 

主　　题：amoeboid motion Doppler anemometry inhibitors of cellular respiration Physarum polycephalum plasmodium self-oscillating motility 

摘      要：This work presents the results of spectral analysis of the time dependences, V(t), of endoplasmic shuttle motility in an isolated strand of plasmodium Physarum polycephalum that were obtained by laser Doppler microscopy after exposure to inhibitors of cellular respiration, viz., potassium cyanide and salicylhydroxamic acid, which lead to the complete cessation of endoplasmic motion. The results confirm the presence of only two harmonic components of V(t) dependences, with frequencies that differ by a factor of 2, ω2/ω1 = 1.972 ± 0.028, in different conditions: under normal conditions, without the addition of inhibitors;in a strand that was partially treated with inhibitors;and in the phase of restoring the oscillatory activity after the complete cessation of endoplasmic motion. © 2016, Pleiades Publishing, Inc.