Response of bacterial colonies to imposed anisotropy

Eshel Ben-Jacob, Ofer Shochet, Adam Tenenbaum, Inon Cohen, Andras Czirók, Tamas Vicsek

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Abstract

We present theoretical and experimental studies of bacterial growth patterns in the presence of imposed anisotropy. The role of chemotactic signaling in the cooperative response of the bacteria is demonstrated. In the presence of sixfold symmetry, patterns with a tantalizing similarity to those of snowflakes are formed. Transitions from concave to convex shaped envelope as a function of peptone level are observed in the presence of fourfold lattice anisotropy.

Original languageEnglish
Pages (from-to)1835-1843
Number of pages9
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume53
Issue number2
DOIs
Publication statusPublished - Jan 1 1996

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ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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