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Applied and Environmental Microbiology, October 2009, p. 6616-6618, Vol. 75, No. 20
0099-2240/09/$08.00+0     doi:10.1128/AEM.00155-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Biofilm Formation and Cell Surface Properties among Pathogenic and Nonpathogenic Strains of the Bacillus cereus Group{triangledown} ,{dagger}

Sandrine Auger,1,{ddagger} Nalini Ramarao,2 Christine Faille,3 Agnès Fouet,4 Stéphane Aymerich,1 and Michel Gohar1*

INRA, UMR1238 Microbiologie et Génétique Moléculaire, F-78850 Thiverval-Grignon, France,1 INRA, UR1249 Génétique Microbienne et Environnement, La Minière, F-78285 Guyancourt, France,2 INRA, UR638 LGPTA, 369 Rue Jules Guesde, 59651 Villeneuve d'Ascq, France,3 Institut Pasteur Toxines et Pathogénie Bactérienne, CNRS, URA 2172, 28 Rue du Docteur Roux, F-75724 Paris Cedex 15, France4

Received 22 January 2009/ Accepted 22 July 2009

Biofilm formation by 102 Bacillus cereus and B. thuringiensis strains was determined. Strains isolated from soil or involved in digestive tract infections were efficient biofilm formers, whereas strains isolated from other diseases were poor biofilm formers. Cell surface hydrophobicity, the presence of an S layer, and adhesion to epithelial cells were also examined.

* Corresponding author. Mailing address: Microbiologie et Génétique Moléculaire, INRA-CNRS-AgroParisTech, F-78850 Thiverval-Grignon, France. Phone: 33 1 30 81 54 48. Fax: 33 1 30 81 54 57. E-mail: michel.gohar{at}jouy.inra.fr

{triangledown} Published ahead of print on 31 July 2009.

{dagger} Supplemental material for this article may be found at http://aem.asm.org/.

{ddagger} Present address: Génétique Microbienne, INRA, Domaine de Vilvert, 78352 Jouy en Josas, France.

Applied and Environmental Microbiology, October 2009, p. 6616-6618, Vol. 75, No. 20
0099-2240/09/$08.00+0     doi:10.1128/AEM.00155-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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