Self-affine growth of bacterial colonies

Tamás Vicsek, Miklós Cserző, Viktor K. Horváth

Research output: Contribution to journalArticle

160 Citations (Scopus)


In this paper the scaling behaviour of the surface of Escherichia coli and Bacillus subtilis colonies growing on agar plates are studied. We present the first experimental evidence for the self-affine fractal nature of the shape of a biological system. The value H≃0.78 we obtained for the roughness exponent H describing the scaling of the surface width indicates that the development of the surface is subject to correlations due to the complexity of bacterial colony formation.

Original languageEnglish
Pages (from-to)315-321
Number of pages7
JournalPhysica A: Statistical Mechanics and its Applications
Issue number2
Publication statusPublished - Aug 15 1990

ASJC Scopus subject areas

  • Statistics and Probability
  • Condensed Matter Physics

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