TY - JOUR

T1 - Morphological Instabilities in a Growing Yeast Colony: Experiment and Theory

A1 - Sams,Thomas

A1 - Sneppen,Kim

A1 - Jensen,Mogens

A1 - Ellegaard,Clive

A1 - Christensen,Bjørn Eggert

A1 - Thrane,Ulf

AU - Sams,Thomas

AU - Sneppen,Kim

AU - Jensen,Mogens

AU - Ellegaard,Clive

AU - Christensen,Bjørn Eggert

AU - Thrane,Ulf

PB - American Physical Society

PY - 1997

Y1 - 1997

N2 - 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.

AB - 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.

KW - GROWTH

KW - PATTERNS

KW - DIRECTIONAL SOLIDIFICATION

KW - DYNAMICS

KW - BACTERIAL COLONIES

UR - http://link.aps.org/doi/10.1103/PhysRevLett.79.313

U2 - 10.1103/PhysRevLett.79.313

DO - 10.1103/PhysRevLett.79.313

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 2

VL - 79

SP - 313

EP - 316

ER -