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has been cited by the following article:

• TITLE: Role of Cell Surface Structures in Biofilm Formation by Escherichia coli

  AUTHORS: Hafida Zahir, Hamadi Fatima, Lekchiri Souad, Mliji El Mostafa, Ellouali Mostafa, Latrache Hassan

  KEYWORDS: Biofilm, Escherichia coli, Cell Surface, Serotype, Antigen, Bacterial Adhesion

  JOURNAL NAME: Food and Nutrition Sciences, Vol.6 No.12, September 28, 2015

  ABSTRACT: This study aims to understand the relationship between capabilities of Escherichia coli strains to form biofilm and serotype groups expressed on cell surface. Sixteen strains of E. coli were originally isolated from different food processing lines in different Moroccan cities. Strains serotyped based on their O (somatic), H (flagellar), and K (capsular) surface antigen profiles using different antiserums. Biofilm assays carried out in 96-well microtiter dishes using the method of O’Toole et al. Our results show that no clear relation observed between origin and serotype groups. In the other hand, we observed that not all studied strains were able to form biofilm. Furthermore, combination of antigens H40 and K11 appears to be involved in biofilm formation. In fact, the H antigen seems to be implicated in the placement of the bacterial cells near the surface and the K antigen may play a role in physicochemical interactions between bacteria and inert surface.