Phase variations inBifidobacterium animalis |
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| Authors: | Bruno Biavati Franca Crociani Paola Mattarelli Dr Vittorio Scardovi |
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| Institution: | (1) Institute of Agrarian Microbiology, University of Bologna, Via Filippo Re 6, 40126 Bologna, Italy;(2) Institute of Normal and Pathological Cytomorphology, CNR, % Institute of Research  Codivilla Putti , Bologna, Italy |
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| Abstract: | Strains isolated from rabbit, chicken, and rat feces and from sewage and fermented milk products, all identified asBifidobacterium animalis, were found to show phase variations in colony appearance and in cellular morphology. The rate of transition in a switching system from opaque to transparent colonies and vice versa was determined. Differences in protein components and in penicillin-binding proteins (PBPs) of the cells from different colony types are shown. |
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