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Morphological changes inEscherichia coli andBacillus cereus caused by external histone

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Abstract

It was found that the externally added histone changes remarkably both the surface and the internal ultrastructure of cells ofEscherichia coli. The interaction of histone with surface structures results in thickening of the inner layer of the cell wall. Cytoplasm becomes condensed, contains extensive electrontransparent zones and neither ribosomes nor the nuclear structure are differentiated. The addition of histone to germinating spores ofBacillus cereus decelerates germination and postgerminative development of this organism and changes ultrastructure of the external surface of the exosporium. The addition of Mg2+ ions reverting the effect of histone results in a renewal of the original ultrastruoture of the exosporium.

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Authors and Affiliations

  1. Department of General Microbiology and Department of Technical Microbiology, Institute of Microbiology, Czechoslovak Academy of Sciences, 142 20, Prague 4

    J. Čáslavská, E. Pavlasová & E. Stejskalová

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  1. J. Čáslavská
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  2. E. Pavlasová
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  3. E. Stejskalová
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Čáslavská, J., Pavlasová, E. & Stejskalová, E. Morphological changes inEscherichia coli andBacillus cereus caused by external histone. Folia Microbiol 21, 301–305 (1976). https://doi.org/10.1007/BF02876907

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  • DOI: https://doi.org/10.1007/BF02876907

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