SISSA - International School for Advanced Studies, Trieste, Italy.
The BioRobotics Institute, Scuola Superiore Sant'Anna, Trieste, Italy.
Elife. 2021 Apr 26;10:e58610. doi: 10.7554/eLife.58610.
We propose and discuss a model for flagellar mechanics in . We show that the peculiar non-planar shapes of its beating flagellum, dubbed 'spinning lasso', arise from the mechanical interactions between two of its inner components, namely, the axoneme and the paraflagellar rod. The spontaneous shape of the axoneme and the resting shape of the paraflagellar rod are incompatible. Thus, the complex non-planar configurations of the coupled system emerge as the energetically optimal compromise between the two antagonistic components. The model is able to reproduce the experimentally observed flagellar beats and the characteristic geometric signature of spinning lasso, namely, traveling waves of torsion with alternating sign along the length of the flagellum.
我们提出并讨论了一种用于 的鞭毛力学模型。我们表明，其独特的非平面拍打形式，被称为“旋转套索”，源于两个内部组件之间的机械相互作用，即轴丝和鞭毛杆。轴丝的自发形状和鞭毛杆的静止形状是不相容的。因此，耦合系统的复杂非平面配置是两个拮抗组件之间的能量最优折衷。该模型能够再现实验观察到的鞭毛拍打和旋转套索的特征几何特征，即沿着鞭毛长度交替变化的扭转行波。
