Modeling of concentric pattern of Serratia marcescens colony
Autoři
Čepl, J.; Scholtz, V.; Scholtzová, J.
Rok
2019
Publikováno
Archives of Microbiology. 2019, 201(1), 87-92. ISSN 0302-8933.
Typ
Článek
Pracoviště
Anotace
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. We confirm that a metabolic activity of growing colony alters its environment which subsequently changes the colony formation.
The fitness change and the diversity maintenance in the growing mixed colony of two Serratia rubidaea clones
Autoři
Čepl, J.; Scholtz, V.; Scholtzová, J.
Rok
2016
Publikováno
Archives of Microbiology. 2016, 2016 301-306. ISSN 0302-8933.
Typ
Článek
Pracoviště
Anotace
We extend the palette of possible colonies models of two different clones of Serratia rubidaea. Our model fits the real morphology of the colonies. We also present that the colony growth leads to a change in the ratio of the fitness which propose to be caused by the production of some signal. This signal influences the behavior of the clones and leads to the prolonged diversity maintenance. The explanation of the diversity maintenance of the mixed concurrent population in one niche is the current studied problem in the ecology and evolution.