TY - JOUR
T1 - Quantitative effects of medium hardness and nutrient availability on the swarming motility of Serratia liquefaciens
AU - Bees, M A
AU - Andresén, P
AU - Mosekilde, E
AU - Givskov, M
N1 - Keywords: Biofilms; Models, Biological; Serratia
PY - 2002
Y1 - 2002
N2 - We report the first controlled measurements of expansion rates for swarming colonies of Serratia liquefaciens under different growth conditions, combined with qualitative observations of the organization of the colony into regions of differentiated cell types. Significantly, the results reveal that swarming colonies of S. liquefaciens can have an increasing expansion rate with time. We compare and contrast the expansion rate results with predictions from a recent mathematical model which coupled key hydrodynamical and biological mechanisms. Furthermore, we investigate whether the swarming colonies grow according to a power law or exponentially (for large times), as suggested by recent theoretical results.
AB - We report the first controlled measurements of expansion rates for swarming colonies of Serratia liquefaciens under different growth conditions, combined with qualitative observations of the organization of the colony into regions of differentiated cell types. Significantly, the results reveal that swarming colonies of S. liquefaciens can have an increasing expansion rate with time. We compare and contrast the expansion rate results with predictions from a recent mathematical model which coupled key hydrodynamical and biological mechanisms. Furthermore, we investigate whether the swarming colonies grow according to a power law or exponentially (for large times), as suggested by recent theoretical results.
U2 - 10.1006/bulm.2002.0287
DO - 10.1006/bulm.2002.0287
M3 - Journal article
C2 - 12094409
SN - 0092-8240
VL - 64
SP - 565
EP - 587
JO - Bulletin of Mathematical Biology
JF - Bulletin of Mathematical Biology
IS - 3
ER -