In this work, we discuss the mechanisms of the ordered-pattern formation in the colonies of microorganisms, which are related to the instabilities of their collective motion. The nematic-order formation during the E.coli-bacterium growth inside an open microflow chamber is considered and intricate flower-like patterns, which emerge during the growth of the binary mixture of two types of bacteria (motile A. baylyi and non-motile E. coli) on the agar surface inside a Petri dish, are described. The experiments and the models, which explain the observed phenomena, are described in both cases.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 63, No. 1, pp. 79–88, January 2020.
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Tsimring, L.S. Formation of Ordered Patterns in Growing Colonies of Microorganisms. Radiophys Quantum El 63, 73–81 (2020). https://doi.org/10.1007/s11141-020-10036-w
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DOI: https://doi.org/10.1007/s11141-020-10036-w