Influence of abrasion on biofilm detachment: evidence for stratification of the biofilm

The objective of this paper was to understand the detachment of multispecies biofilm caused by abrasion. By submitting a biofilm to different abrasion strengths (collision of particles), stratification of biofilm cohesion could be highlighted and related to stratification of biofilm bacterial commun...

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Bibliographic Details
Published in:Journal of industrial microbiology & biotechnology 2009-03, Vol.36 (3), p.467-470
Main Authors: Rochex, Alice, Massé, Anthony, Escudié, Renaud, Godon, Jean-Jacques, Bernet, Nicolas
Format: Article
Language:English
Subjects:
Abrasion
Bacteria
Bacteria - genetics
Bacteria - growth & development
Bacterial Adhesion
Biochemistry
Biofilms
Biofilms - growth & development
Bioinformatics
Biological and medical sciences
Biomass
Biomedical and Life Sciences
Bioreactors
Biotechnology
Disinfection & disinfectants
DNA, Bacterial - analysis
Dominant species
Ecosystem
Environmental Sciences
Equipment Design
Fundamental and applied biological sciences. Psychology
Genetic Engineering
Inorganic Chemistry
Life Sciences
Microbiology
Microspheres
Polymerase Chain Reaction
Polymorphism, Single-Stranded Conformational
Polypropylenes
Short Communication
Stratification
Stress, Mechanical
Studies
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Summary:The objective of this paper was to understand the detachment of multispecies biofilm caused by abrasion. By submitting a biofilm to different abrasion strengths (collision of particles), stratification of biofilm cohesion could be highlighted and related to stratification of biofilm bacterial communities using the PCR-SSCP fingerprint method. The biofilm comprised a thick top layer, weakly cohesive and composed of one dominant species, and a thin basal layer, strongly cohesive and composed of a more diverse population. These observations suggest that microbial composition of biofilms may be an important parameter in understanding biofilm detachment.
ISSN:1367-5435
1476-5535
DOI:10.1007/s10295-009-0543-x