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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Interrelation between respiratory and contractile activity of Physarum polycephalum
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Interrelation between respiratory and contractile activity of Physarum polycephalum

机译：物理骨盆呼吸与收缩活动之间的相互关联

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Different types of endoplasmic oscillatory activity of Physarum polycephalum plasmodium driven by external influences were investigated. Shuttle velocity oscillations of the endoplasm in an isolated plasmodium strand have been analysed using short-time Fourier (STFT) and wavelet transform. Spectral characteristics calculated from the obtained data allowed us to reveal two internal harmonic oscillators with frequencies differing twice with high accuracy (similar to 2%), or one oscillator in which the frequency doubled with the phase shift. The amplitudes and phases of these harmonics only determine contractile activity, self-organisation and migration of the strand. Inhibitors of the cellular respiration (KCN-SHAM) were applied to demonstrate the interrelation between respiratory pathways with contractile activity. Both internal oscillators showed high sensitivity to the respiratory inhibitors: fast cessation of oscillation in the presence of inhibitors and gradual recovery when they have been removed.
机译：研究了由外部影响驱动的摄影术疟原虫的不同类型的内质振荡活性。使用短时傅里叶（STFT）和小波变换分析了分离的疟原虫中内膜的梭速度振荡。从所获得的数据计算的光谱特性允许我们透露两个内部谐波振荡器，频率不同的两次，高精度（类似于2％），或者一个振荡器，其中频率随相移的频率增加。这些谐波的幅度和阶段仅确定股线的收缩活动，自组织和迁移。施用细胞呼吸（KCN-SHAM）的抑制剂以证明具有收缩活性的呼吸道途径之间的相互关系。两个内部振荡器对呼吸抑制剂表现出高敏感性：在抑制剂存在下快速停止振荡，并在除去时逐渐恢复。

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