Journal of the Physical Society of Japan
Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015
Morphological Diversity of the Colony Produced by Bacteria Proteus mirabilis
Akio NakaharaYuji ShimadaJun–ichi WakitaMitsugu MatsushitaTohey Matsuyama
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1996 Volume 65 Issue 8 Pages 2700-2706

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Abstract

Morphological changes of colonies have been investigated for a bacterial strain of Proteus mirabilis, which is a famous species for producing concentric-ring-like colonies. It was found that colony patterns can be classified into three types, i.e., cyclic spreading, diffusion-limited growth (DLA-like) and three-dimensional growth (inside the agar medium) patterns. Cyclic spreading patterns can further be classified into three subgroups, i.e., concentric-ring, homogeneous and spatiotemporal patterns. These subgroups were classified by examining the development of colony structure after colonies spread all over petri-dishes. Comparison of the results with those of another bacterial species Bacillus subtilis is also discussed.

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© The Physical Society of Japan 1996
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