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Fimbriae and lipopolysaccharides are necessary for co-aggregation between Lactobacilli and Escherichia coli |
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| Authors: | Kouhei Mizuno Yumi Usui Madoka Ishiba Hirokazu Ogihara Yasushi Morinaga |
| Institution: | 1. Department of Materials Science and Chemical Engineering, Kitakyushu National College of Technology, Kitakyushu, Japanmizuno@kct.ac.jp furukawa@brs.nihon-u.ac.jp;3. Department of Food Bioscience and Biotechnology, College of Bioresource Sciences, Nihon University, Fujisawa, Japan;4. Department of Materials Science and Chemical Engineering, Kitakyushu National College of Technology, Kitakyushu, Japan |
| Abstract: | Cells of Lactobacilli co-aggregated with Escherichia coli K-12 cells to form co-aggregates under mixed-culture conditions at 37?°C for 24?h. Co-aggregation was inhibited by sodium dodecyl sulfate but not by protease. E. coli deletion mutants of fimbriae formation and lipopolysaccharide (LPS) formation did not co-aggregate with Lactobacilli. These results showed that fimbriae and LPS are necessary for co-aggregation between Lactobacilli and E. coli. |
| Keywords: | co-aggregation Escherichia coli Lactobacillus lipopolysaccharide fimbriae |