Analysis of the velocity correlation in the collective motion of bacteria

• Nakai Tonau

  Tottori University

• Mouri Yoshihiro

  Tottori University

• Goto Tomonobu

  Tottori University

Abstract

To elucidate the characteristics of flow in the collective motion of bacteria, we performed microscopic observation of the cells cultured on a semi-fluid medium. The collective motion occurs when the average cell-cell distance decreases to 5 μm, almost the same as the size of the cell. The standard deviation of the angle between velocity vectors represents the degree of collective motion well. The characteristic size of the swarming group is deduced by the analysis of the correlation with respect to the direction parallel and perpendicular to the swimming direction; 30 μm in length and 10 μm in width.

Journal

• Journal of Aero Aqua Bio-mechanisms

  Journal of Aero Aqua Bio-mechanisms 4 (1), 32-36, 2015

  Society of Aero Aqua Bio-mechanisms

Keywords

• Bacterial swarming
• Collective motion
• Flagellum
• Flow field
• Velocity correlation

Details

• CRID: 1390282680319659904
• NII Article ID: 130005093444
• DOI: 10.5226/jabmech.4.32
• ISSN: 21851522
• Web Site: https://www.jstage.jst.go.jp/article/jabmech/4/1/4_32/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed