Periodic growth of bacterial colonies

Yoshihiro Yamazaki, Takemasa Ikeda, Hirotoshi Shimada, Fumiko Hiramatsu, Naoki Kobayashi, Jun Ichi Wakita, Hiroto Itoh, Sayuri Kurosu, Michio Nakatsuchi, Tohey Matsuyama, Mitsugu Matsushita*

*この研究の対応する著者

研究成果: Article査読

18 被引用数 (Scopus)

抄録

The formation of concentric ring colonies by bacterial species Bacillus subtilis and Proteus mirabilis has been investigated experimentally, focusing our attention on the dependence of local cell density upon the bacterial motility. It has been confirmed that these concentric ring colonies reflect the periodic change of the bacterial motility between motile cell state and immotile cell state. We conclude that this periodic change is macroscopically determined neither by biological factors (i.e., biological clock) nor by chemical factors (chemotaxis as inhibitor). And our experimental results strongly suggest that the essential factor for the change of the bacterial motility during concentric ring formation is the local cell density.

本文言語English
ページ(範囲)136-153
ページ数18
ジャーナルPhysica D: Nonlinear Phenomena
205
1-4
DOI
出版ステータスPublished - 2005 6月 1

ASJC Scopus subject areas

  • 統計物理学および非線形物理学
  • 数理物理学
  • 凝縮系物理学
  • 応用数学

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