A Mathematical Explanation of an Increase in Bacterial Swimming Speed with Viscosity in Linear-Polymer Solutions

by: Yukio Magariyama, Seishi Kudo

Biophys. J., Vol. 83, No. 2. (1 August 2002), pp. 733-739.

View FullText article

HighWire, Pubmed, Hubmed

Reviews [Write a review of this article]

There are no reviews of this article

Find related articles from these CiteULike users

vladimirov

Find related articles with these CiteULike tags

bacteria, medium, viscosity, viscous

Abstract

Bacterial swimming speed is sometimes known to increase with viscosity. This phenomenon is peculiar to bacterial motion. Berg and Turner (Nature. 278:349-351, 1979) indicated that the phenomenon was caused by a loose, quasi-rigid network formed by polymer molecules that were added to increase viscosity. We mathematically developed their concept by introducing two apparent viscosities and obtained results similar to the experimental data reported before. Addition of polymer improved the propulsion efficiency, which surpasses the decline in flagellar rotation rate, and the swimming speed increased with viscosity.

@article{2002Magariyama, abstract = {Bacterial swimming speed is sometimes known to increase with viscosity. This phenomenon is peculiar to bacterial motion. Berg and Turner (Nature. 278:349-351, 1979) indicated that the phenomenon was caused by a loose, quasi-rigid network formed by polymer molecules that were added to increase viscosity. We mathematically developed their concept by introducing two apparent viscosities and obtained results similar to the experimental data reported before. Addition of polymer improved the propulsion efficiency, which surpasses the decline in flagellar rotation rate, and the swimming speed increased with viscosity.}, author = {Magariyama, Yukio and Kudo, Seishi }, citeulike-article-id = {3061300}, journal = {Biophys. J.}, keywords = {bacteria, medium, viscosity, viscous}, month = {August}, number = {2}, pages = {733--739}, posted-at = {2008-07-30 13:01:08}, priority = {0}, title = {A Mathematical Explanation of an Increase in Bacterial Swimming Speed with Viscosity in Linear-Polymer Solutions}, url = {http://www.biophysj.org/cgi/content/abstract/83/2/733}, volume = {83}, year = {2002} }

RIS record

TY - JOUR ID - 2002Magariyama L3 - citeulike-article-id:3061300 TI - A Mathematical Explanation of an Increase in Bacterial Swimming Speed with Viscosity in Linear-Polymer Solutions JF - Biophys. J. VL - 83 IS - 2 SP - 733 EP - 739 N2 - Bacterial swimming speed is sometimes known to increase with viscosity. This phenomenon is peculiar to bacterial motion. Berg and Turner (Nature. 278:349-351, 1979) indicated that the phenomenon was caused by a loose, quasi-rigid network formed by polymer molecules that were added to increase viscosity. We mathematically developed their concept by introducing two apparent viscosities and obtained results similar to the experimental data reported before. Addition of polymer improved the propulsion efficiency, which surpasses the decline in flagellar rotation rate, and the swimming speed increased with viscosity. KW - bacteria KW - medium KW - viscosity KW - viscous AU - Magariyama, Yukio AU - Kudo, Seishi PY - 2002/08/01/ UR - http://www.biophysj.org/cgi/content/abstract/83/2/733 ER -

RIS BibTeX