Conversion of Protoplasts of Colistin-producingBacillus colistinusto L-forms and Bacillary Forms
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چکیده
منابع مشابه
Studies of L Forms and Protoplasts of Group a Streptococci
Intact bacterial membranes have been isolated from protoplasts prepared from Group A streptococci by a cell wall-dissolving enzyme. A membrane fraction with identical chemical and serological properties has been obtained by differential centrifugation of mechanically disrupted streptococci. The membrane is chemically distinct from the cell wall and is composed of 72 per cent protein, 26 per cen...
متن کاملGrowth of bacterial L forms and bacterial protoplasts.
Numerous morphological, physiological, and biochemical studies have been carried out on bacterial forms exhibiting a pronounced osmotic fragility (for review see Weibull, 1958b). Naked bacterial protoplasts, obtained by means of a complete removal of the cell wall by lysozyme in a sucrose medium (Weibull, 1953) offer an example of such an osmotically fragile structure. Osmotically sensitive for...
متن کاملComparison of Lipids and Lipopolysaccharide from the Bacillary and L Forms of Proteus P18.
Nesbitt, J. A., III (The Johns Hopkins University School of Medicine, Baltimore, Md.), and W. J. Lennarz. Comparison of lipids and lipopolysaccharides from the bacillary and L forms of Proteus P18. J. Bacteriol. 89:1020-1025. 1965.-Comparative studies on the L form of Proteus P18 and the parent bacterium grown in a defined medium showed that the L form contained 1.5 times as much extractable li...
متن کاملApplications of quadratic D-forms to generalized quadratic forms
In this paper, we study generalized quadratic forms over a division algebra with involution of the first kind in characteristic two. For this, we associate to every generalized quadratic from a quadratic form on its underlying vector space. It is shown that this form determines the isotropy behavior and the isometry class of generalized quadratic forms.
متن کاملReversion to the streptococcal state of enterococcal protoplasts, spheroplasts, and L-forms.
A method is described for predetermining whether lysozyme-damaged enterococci grow as either the parent strain or as L-forms. Organisms treated with lysozyme grew as L-forms on media solidified with low concentrations of agar, or the damaged cells grew as streptococci on media solidified with high concentrations of gelatin. After induction, some of the L-forms reverted to the parent strain, but...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1985
ISSN: 0002-1369
DOI: 10.1080/00021369.1985.10866787