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Modeling of concentric pattern of Serratia marcescens colony

Author:
Čepl, Jaroslav, Scholtz, Vladimír, Scholtzová, Jiřina
Source:
Archives of microbiology 2019 v.201 no.1 pp. 87-92
ISSN:
0302-8933
Subject:
Serratia marcescens, agar, amino acids, biochemical pathways, glucose, mathematical models, pH
Abstract:
Serratia marcescens forms different colony patterns under distinct conditions. One of them is the concentric fountain-shaped pattern with pigmented center followed by unpigmented ring and pigmented rim. In this work, we study this pattern formation by construction of the mathematical model able to display this pattern based on putative metabolical traits, supported by series of experiments and by references. A pattern formation of such colony type depends on the disposition of glucose and amino acids, and is accompanied by a pH change in the agar medium. In this paper, we confirm that a metabolic activity of growing colony alters its environment which subsequently changes the colony formation. Presented model corresponds well with the real colony behaviour.
Agid:
6272429