文章基本信息

标题：Role of Cell Surface Structures in Biofilm Formation by Escherichia coli
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作者：Hafida Zahir ; Hamadi Fatima ; Lekchiri Souad 等
期刊名称：Food and Nutrition Sciences
印刷版ISSN：2157-944X
电子版ISSN：2157-9458
出版年度：2015
卷号：06
期号：12
页码：1160-1165
DOI：10.4236/fns.2015.612121
语种：English
出版社：Scientific Research Publishing
摘要：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.
关键词：Biofilm;Escherichia coli;Cell Surface;Serotype;Antigen;Bacterial Adhesion