Biofilm formation and cell surface properties among pathogenic and nonpathogenic strains of the Bacillus cereus group.

Sandrine Auger (1) , Nalini Ramarao (2) , Christine Faille (3) , Agnès Fouet (4) , Stéphane Aymerich (1) , Michel Gohar (1)

1 MGM - Microbiologie et Génétique Moléculaire
2 Génétique Microbienne et Environnement
3 LGPTA - Laboratoire de Génie des Procédés et Technologie Alimentaires
4 Toxines et Pathogénie Bactérienne

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.

Keywords: biofilm; pathogenic; nonpathogenic; B. thuringiensis

Keywords: bacillus cereus

Domains: Life Sciences [q-bio]; Microbiology and Parasitology; Life Sciences [q-bio]; Development Biology; Life Sciences [q-bio]; Human health and pathology; Tissues and Organs [q-bio.TO]

Sandrine Auger, Nalini Ramarao, Christine Faille, Agnès Fouet, Stéphane Aymerich, et al.. Biofilm formation and cell surface properties among pathogenic and nonpathogenic strains of the Bacillus cereus group.. Applied and Environmental Microbiology, 2009, 75 (20), pp.6616-8. ⟨10.1128/aem.00155-09⟩. ⟨pasteur-00512106⟩