Temperature dependence of M pilus formation as demonstrated by electron microscopy |
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Authors: | Gunter Karste Klaus Adler Helmut Tschpe |
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Institution: | Institut für Experimentelle Epidemiologie, Wernigerode, DDR. |
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Abstract: | The formation of IncM plasmid encoded pili is dependent on the incubation temperature of the corresponding host strains. By labelling the short, rigid M pili with the donor specific bacteriophage luminal diameter M, the presence of pili at 30 degrees C but not at 37 degrees C incubation temperature could be demonstrated for E. coli K12 substrains carrying different IncM group plasmids. In contrast, such a temperature dependence of M pilus formation is not observed in S. typhimurium substrains. |
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