Dynamics of development and dispersal in sessile microbial communities: examples from Pseudomonas aeruginosa and Pseudomonas putida model biofilms.

TY - JOUR

T1 - Dynamics of development and dispersal in sessile microbial communities: examples from Pseudomonas aeruginosa and Pseudomonas putida model biofilms.

AU - Klausen, Mikkel

AU - Gjermansen, Morten

AU - Kreft, Jan-Ulrich

AU - Tolker-Nielsen, Tim

N1 - Keywords: Adaptation, Physiological; Bacterial Proteins; Biofilms; DNA, Bacterial; Green Fluorescent Proteins; Luminescent Proteins; Pseudomonas aeruginosa; Pseudomonas putida

PY - 2006

Y1 - 2006

N2 - Surface-associated microbial communities in many cases display dynamic developmental patterns. Model biofilms formed by Pseudomonas aeruginosa and Pseudomonas putida in laboratory flow-chamber setups represent examples of such behaviour. Dependent on the experimental conditions the bacteria in these model biofilms develop characteristic multicellular structures through a series of distinct steps where cellular migration plays an important role. Despite the appearance of these characteristic developmental patterns in the model biofilms the available evidence suggest that the biofilm forming organisms do not possess comprehensive genetic programs for biofilm development. Instead the bacteria appear to have evolved a number of different mechanisms to optimize surface colonization, of which they express a subset in response to the prevailing environmental conditions. These mechanisms include the ability to regulate cellular adhesiveness and migration in response to micro-environmental signals including those secreted by the bacteria themselves.

AB - Surface-associated microbial communities in many cases display dynamic developmental patterns. Model biofilms formed by Pseudomonas aeruginosa and Pseudomonas putida in laboratory flow-chamber setups represent examples of such behaviour. Dependent on the experimental conditions the bacteria in these model biofilms develop characteristic multicellular structures through a series of distinct steps where cellular migration plays an important role. Despite the appearance of these characteristic developmental patterns in the model biofilms the available evidence suggest that the biofilm forming organisms do not possess comprehensive genetic programs for biofilm development. Instead the bacteria appear to have evolved a number of different mechanisms to optimize surface colonization, of which they express a subset in response to the prevailing environmental conditions. These mechanisms include the ability to regulate cellular adhesiveness and migration in response to micro-environmental signals including those secreted by the bacteria themselves.

U2 - 10.1111/j.1574-6968.2006.00280.x

DO - 10.1111/j.1574-6968.2006.00280.x

M3 - Journal article

C2 - 16842351

SN - 0378-1097

VL - 261

SP - 1

EP - 11

JO - F E M S Microbiology Letters

JF - F E M S Microbiology Letters

IS - 1

ER -