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Journal Article

Multicellular self-organization of P. aeruginosa due to interactions with secreted trails


Golestanian,  Ramin       
Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Gelimson, A., Zhao, K., Lee, C. K., Kranz, W. T., Wong, G. C. L., & Golestanian, R. (2016). Multicellular self-organization of P. aeruginosa due to interactions with secreted trails. Physical Review Letters, 117(17): 178102. doi:10.1103/PhysRevLett.117.178102.

Cite as: https://hdl.handle.net/21.11116/0000-0001-70DD-8
Guided movement in response to slowly diffusing polymeric trails provides a unique mechanism for self-organization of some microorganisms. To elucidate how this signaling route leads to microcolony formation, we experimentally probe the trajectory and orientation of Pseudomonas aeruginosa that propel themselves on a surface using type IV pili motility appendages, which preferentially attach to deposited exopolysaccharides. We construct a stochastic model by analyzing single-bacterium trajectories and show that the resulting theoretical prediction for the many-body behavior of the bacteria is in quantitative agreement with our experimental characterization of how cells explore the surface via a power-law strategy. © 2016 American Physical Society.