Enhanced Surface Colonization by Escherichia coli O157:H7 in Biofilms Formed by an Acinetobacter calcoaceticus Isolate from Meat-Processing Environments

A meat factory commensal bacterium, Acinetobacter calcoaceticus, affected the spatial distribution of Escherichia coli O157:H7 surface colonization. The biovolume of E. coli O157:H7 was 400-fold higher (1.2 x 10⁶ μm³) in a dynamic cocultured biofilm than in a monoculture (3.0 x 10³ μm³), and E. coli...

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Bibliographic Details
Published in:Applied and Environmental Microbiology 2010-07, Vol.76 (13), p.4557-4559
Main Authors: Habimana, Olivier, Heir, Even, Langsrud, Solveig, Åsli, Anette Wold, Møretrø, Trond
Format: Article
Language:English
Subjects:
Acinetobacter calcoaceticus
Acinetobacter calcoaceticus - growth & development
Acinetobacter calcoaceticus - ultrastructure
Biofilms
Biofilms - growth & development
Biological and medical sciences
Cells
Coculture Techniques
Colony Count, Microbial
E coli
Escherichia coli O157 - genetics
Escherichia coli O157 - growth & development
Escherichia coli O157 - ultrastructure
Food Contamination
Food Microbiology
Food-Processing Industry
Fundamental and applied biological sciences. Psychology
Green Fluorescent Proteins - genetics
Green Fluorescent Proteins - metabolism
Meat
Meat - microbiology
Microbiology
Microscopy, Confocal
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Summary:A meat factory commensal bacterium, Acinetobacter calcoaceticus, affected the spatial distribution of Escherichia coli O157:H7 surface colonization. The biovolume of E. coli O157:H7 was 400-fold higher (1.2 x 10⁶ μm³) in a dynamic cocultured biofilm than in a monoculture (3.0 x 10³ μm³), and E. coli O157:H7 colonized spaces between A. calcoaceticus cell clusters.
ISSN:0099-2240
1098-5336
1098-6596
DOI:10.1128/AEM.02707-09