Structural studies on the acidic polysaccharide of Bacillus cereus AHU 1356 cell walls
نویسندگان
چکیده
منابع مشابه
Autolysis of Bacillus cereus cell walls and isolation of structural components.
Autolysis of Bacillus cereus N.R.R.L. 569 cell walls was accompanied by hydrolysis of the majority of the 4-O-beta-N-acetylglucosaminyl-N-acetylmuramic acid linkages in mucopeptide, presumably by an endo-beta-N-acetylglucosaminidase. Hydrolysis of the N-acetylmuramyl-l-alanine linkages by an amidase also occurred. Free d-alanine residues were detected in isolated cell walls and the proportion o...
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Evidence is presented for the existence of three distinct enterotoxins detected in concentrated cell-free culture filtrates of selected Bacillus cereus strains. The first was a product capable of stimulating the adenylate cyclase-cyclic-AMP system in intestinal epithelial cells and, possibly through this, causing fluid accumulation in ligated ileal sections ("loops") of young rabbits. This was ...
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Abstract Background and Objective: Honey is a healthy and nutritious food that has been used for a long time as a treatment for different diseases. One of the applied properties of honey is its antimicrobial effect, which differs between different types of honey due to variation of phenolic and antioxidant compositions. This study aimed to assess antimicrobial effect of honey on Bacillus cereu...
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Only 30-50 yo of the cell-bound penicillinase of Bacillus cereus NRRL 569 is neutralized by antiserum prepared against the exo-penicillinase. The unneutralizable fraction is not decreased by cell disintegration which liberates a proportion of the cell-bound enzyme into solution. Absence of neutralization cannot therefore be explained by the existence of a mechanical barrier which prevents acces...
متن کاملOccurrence of N-nonsubstituted glucosamine residues in peptidoglycan of lysozyme-resistant cell walls from Bacillus cereus.
The occurrence of N-nonsubstituted glucosamine residues in Bacillus cereus cell wall peptidoglycan is demonstrated and accounts for resistance of the cell walls to lysozyme. Lysozyme-resistant cell walls isolated from three strains of B. cereus indicate unusually small free muramic acid contents as analyzed in an autoanalyzer after acid hydrolysis. Over 80% of the total muramic acid was recover...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1985
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1985.tb08864.x