植物细胞的胞质流：壁滑移的作用
Cytoplasmic streaming in plant cells: the role of wall slip
摘要：
我们提出了一个计算机模拟研究，通过格子玻尔兹曼模拟，细胞质流在藻类细胞，如那些轮藻的微观模型。我们将肌球蛋白马达沿着肌动蛋白通道跟踪建模为沿着固定线进行定向运动的球体。球体尺寸考虑到电机拖动囊泡或其他细胞器的事实，并且，与以前的工作不同，我们建模的边界靠近电机移动作为一个有限的滑移层的墙壁。通过使用现实的参数值肌动蛋白泳道和肌球蛋白密度，以及内质和液泡的粘度和滑层靠近壁，我们发现，这种简化的视图，它不依赖于任何电机，细胞质和液泡之间的耦合比由粘性斯托克斯流提供的其他，是足以占观察到的幅度的流动速度在活植物细胞的细胞内液。
英文摘要：
We present a computer simulation study, via lattice Boltzmann simulations, of a microscopic model for cytoplasmic streaming in algal cells such as those of Chara corallina. We modelled myosin motors tracking along actin lanes as spheres undergoing directed motion along fixed lines. The sphere dimension takes into account the fact that motors drag vesicles or other organelles, and, unlike previous work, we model the boundary close to which the motors move as walls with a finite slip layer. By using realistic parameter values for actin lane and myosin density, as well as for endoplasmic and vacuole viscosity and the slip layer close to the wall, we find that this simplified view, which does not rely on any coupling between motors, cytoplasm and vacuole other than that provided by viscous Stokes flow, is enough to account for the observed magnitude of streaming velocities in intracellular fluid in living plant cells.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
