Emergent Run-and-Tumble Behavior in a Simple Model of Chlamydomonas with Intrinsic Noise

被引：56

作者：

Bennett, Rachel R. ^{[1
]}

Golestanian, Ramin ^{[1
]}

机构：

[1] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 14期

基金：

英国工程与自然科学研究理事会;

关键词：

BACTERIAL; SYNCHRONIZATION; CHEMOTAXIS; ADAPTATION;

D O I：

10.1103/PhysRevLett.110.148102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent experiments on the green alga Chlamydomonas that swims using synchronized beating of a pair of flagella have revealed that it exhibits a run-and-tumble behavior similar to that of bacteria such as E. coli. Using a simple purely hydrodynamic model that incorporates a stroke cycle and an intrinsic Gaussian white noise, we show that a stochastic run-and-tumble behavior could emerge due to the nonlinearity of the combined synchronization-rotation-translation dynamics. Our study suggests that nonlinear mechanics could be a significant contributing factor to how the trajectories of the microorganism are selected. DOI: 10.1103/PhysRevLett.110.148102

引用

页数：5

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