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Chemotactic drift speed for bacterial motility pattern with two alternating turning events.
Pankratova, Evgeniya V; Kalyakulina, Alena I; Krivonosov, Mikhail I; Denisov, Sergei V; Taute, Katja M; Zaburdaev, Vasily Yu.
Afiliação
  • Pankratova EV; Institute of Information Technologies, Mathematics and Mechanics, Lobachevsky State University, Nizhniy Novgorod, Russia.
  • Kalyakulina AI; Institute of Information Technologies, Mathematics and Mechanics, Lobachevsky State University, Nizhniy Novgorod, Russia.
  • Krivonosov MI; Institute of Information Technologies, Mathematics and Mechanics, Lobachevsky State University, Nizhniy Novgorod, Russia.
  • Denisov SV; Institute of Information Technologies, Mathematics and Mechanics, Lobachevsky State University, Nizhniy Novgorod, Russia.
  • Taute KM; Department of Theoretical Physics, University of Augsburg, Augsburg, Germany.
  • Zaburdaev VY; Rowland Institute at Harvard, Harvard University, Cambridge, United States of America.
PLoS One ; 13(1): e0190434, 2018.
Article em En | MEDLINE | ID: mdl-29351336
ABSTRACT
Bacterial chemotaxis is one of the most extensively studied adaptive responses in cells. Many bacteria are able to bias their apparently random motion to produce a drift in the direction of the increasing chemoattractant concentration. It has been recognized that the particular motility pattern employed by moving bacteria has a direct impact on the efficiency of chemotaxis. The linear theory of chemotaxis pioneered by de Gennes allows for calculation of the drift velocity in small gradients for bacteria with basic motility patterns. However, recent experimental data on several bacterial species highlighted the motility pattern where the almost straight runs of cells are interspersed with turning events leading to the reorientation of the cell swimming directions with two distinct angles following in strictly alternating order. In this manuscript we generalize the linear theory of chemotaxis to calculate the chemotactic drift speed for the motility pattern of bacteria with two turning angles. By using the experimental data on motility parameters of V. alginolyticus bacteria we can use our theory to relate the efficiency of chemotaxis and the size of bacterial cell body. The results of this work can have a straightforward extension to address most general motility patterns with alternating angles, speeds and durations of runs.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Quimiotaxia / Vibrio alginolyticus / Modelos Biológicos Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Federação Russa

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Quimiotaxia / Vibrio alginolyticus / Modelos Biológicos Idioma: En Revista: PLoS One Assunto da revista: CIENCIA / MEDICINA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Federação Russa