Growth and detachment of cell clusters from mature mixed-species biofilms
Stoodley, P., Wilson, S., Hall-Stoodley, L., Boyle, J.D., Lappin-Scott, H.M. and Costerton, J.W. (2001) Growth and detachment of cell clusters from mature mixed-species biofilms. Applied and Environmental Microbiology, 67, (12), 5608-5613. (doi:10.1128/AEM.67.12.5608-5613.2001.).
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Detachment from biofilms is an important consideration in the dissemination of infection and the contamination of industrial systems but is the least-studied biofilm process. By using digital time-lapse microscopy and biofilm flow cells, we visualized localized growth and detachment of discrete cell clusters in mature mixed-species biofilms growing under steady conditions in turbulent flow in situ. The detaching biomass ranged from single cells to an aggregate with a diameter of approximately 500 microm. Direct evidence of local cell cluster detachment from the biofilms was supported by microscopic examination of filtered effluent. Single cells and small clusters detached more frequently, but larger aggregates contained a disproportionately high fraction of total detached biomass. These results have significance in the establishment of an infectious dose and public health risk assessment.
|Subjects:||Q Science > QR Microbiology|
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
|Date Deposited:||09 Jun 2010 15:40|
|Last Modified:||19 Jul 2013 01:08|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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