Abstract
Wolin, M. J. (University of Illinois, Urbana). Lysis of Vibrio succinogenes by ethylenediaminetetraacetic acid or lysozyme. J. Bacteriol. 91:1781–1786. 1966.—Cell suspensions of Vibrio succinogenes are lysed by ethylenediaminetetraacetic acid (EDTA) or lysozyme. Lysis occurs at alkaline pH and is prevented by 0.15 m NaCl or KCl or 0.3 m sucrose. The addition of 10−3m Mg++, 10−3m spermine, or 10−2m Ca++ prevents lysozyme lysis, and 10−4m spermine prevents EDTA lysis. EDTA lysis leads to the formation of a cell ghost, and lysozyme lysis leads to the formation of an empty round body. Freezing and thawing of cells permits lysozyme attack which is not prevented by the protective agents mentioned above. Much of the cell protein, and almost all of the nucleic acids, are released from the cells during EDTA lysis. Treatment of frozen-thawed cells with lysozyme at neutral pH does not cause release of more than 50% of the cell protein and 60% of the nucleic acids of the cells.
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Selected References
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