@article{mbs:/content/journal/micro/10.1099/00221287-50-1-37, author = "BEATON, C. D.", title = "An Electron Microscope Study of the Mesosomes of a Penicillinase-producing Staphylococcus", journal= "Microbiology", year = "1968", volume = "50", number = "1", pages = "37-42", doi = "https://doi.org/10.1099/00221287-50-1-37", url = "https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-50-1-37", publisher = "Microbiology Society", issn = "1465-2080", type = "Journal Article", abstract = "SUMMARY Thin sections of Staphylococcus aureus were examined in the electron microscope, before and after treatments which released part of their cell-bound penicillinase. In all cases, such treatment resulted in alteration of the mesosome structure: the mesosome was replaced by a series of pockets or invaginations in the cytoplasmic membrane. The converse situation was not always true; cocci treated in such a way as to alter the mesosome structure did not necessarily release penicillinase. This leads to the conclusion that structural alteration of the mesosome is only one of a number of steps in the release of penicillinase.", }