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| Content Provider | PubMed Central |
|---|---|
| Author | Kessel, R. W. I. Freedman, Henry H. Braun, Werner |
| Abstract | Kessel, R. W. I. (Rutgers, The State University, New Brunswick, N.J.), Henry H. Freedman, and Werner Braun. Relation of polysaccharide content to some biological properties of endotoxins from mutants of Salmonella typhimurium. J. Bacteriol. 92:592–596. 1966.—Endotoxins were extracted by the phenol-water procedure from a variety of Salmonella typhimurium mutants with known differences in the composition of their cell wall polysaccharides. The lethality of these preparations for mice proved to be correlated with the complexity of the polysaccharide: endotoxin from the smooth parent strain and from rough strains with several sugars attached to the heptose-phosphate backbone were of high toxicity, whereas endotoxin from a mutant possessing only glucose attached to the heptose-phosphate backbone was less toxic, and endotoxin from a mutant possessing the backbone only was least toxic. All of these mutants yielded endotoxins that were equally capable of protecting mice against subsequent challenge with Pseudomonas aeruginosa. Material obtained from a heptoseless mutant by the phenol-water method proved to be neither toxic nor protective. The apparent dissociation of biological properties that can be achieved with the aid of endotoxin preparations from certain mutants is discussed in terms of possible mechanisms. |
| Starting Page | 592 |
| File Format | |
| ISSN | 10985530 |
| e-ISSN | 10985530 |
| Journal | Journal of Bacteriology |
| Issue Number | 3 |
| Volume Number | 92 |
| Language | English |
| Publisher Date | 1966-09-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Molecular Biology Microbiology |
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