Morphological Instabilities in a Growing Yeast Colony: Experiment and Theory
- 14 July 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 79 (2) , 313-316
- https://doi.org/10.1103/physrevlett.79.313
Abstract
We study the growth of colonies of the yeast Pichia membranaefaciens on agarose film. The growth conditions are controlled in a setup where nutrients are supplied through an agarose film suspended over a solution of nutrients. As the thickness of the agarose film is varied, the morphology of the front of the colony changes. The growth of the front is modeled by coupling it to a diffusive field of inhibitory metabolites. Qualitative agreement with experiments suggests that such a coupling is responsible for the observed instability of the front.Keywords
All Related Versions
This publication has 22 references indexed in Scilit:
- Traveling-Wave ChemotaxisPhysical Review Letters, 1996
- Competing Patterns of Signaling Activity inDictyostelium DiscoideumPhysical Review Letters, 1996
- The significances of bacterial colony patternsBioEssays, 1995
- Spatiotemporal Patterns Produced by BacteriaJournal of the Physics Society Japan, 1995
- Experimental Investigation on the Validity of Population Dynamics Approach to Bacterial Colony FormationJournal of the Physics Society Japan, 1994
- Generic modelling of cooperative growth patterns in bacterial coloniesNature, 1994
- Holotransformations of bacterial colonies and genome cyberneticsPhysica A: Statistical Mechanics and its Applications, 1994
- Quantification of fungal morphology, gaseous transport and microbial dynamics in soil: an integrated framework utilising fractal geometryGeoderma, 1993
- Growth of bioconvection patterns in a suspension of gyrotactic micro-organisms in a layer of finite depthJournal of Fluid Mechanics, 1989
- The chemical basis of morphogenesisPhilosophical Transactions of the Royal Society of London. B, Biological Sciences, 1952