Stability of the virulence plasmid in Yersinia enterocolitica at elevated temperatures |
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| Affiliation: | 1. Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal;2. Department of Applied Chemistry and Physics, IMARENABIO, University of Léon, Campus de Vegazana, Léon, Spain;1. National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, 305-8563, Japan;2. Department of Applied Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan;3. Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, 305-8563, Japan |
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| Abstract: | This report presents information about the stability of the Yersinia enterocolitica virulence plasmid at elevated temperatures. Though considerable variation existed in the heat resistance of five strains (representing four serotypes), exposure of the different plasmid-bearing virulent strains to temperatures of 45, 50 and 55°C did not cause the loss of the virulence plasmid from the surviving cells. Based on the crystal violet (CV) binding test, these surviving cells were still virulent. |
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