Abstract
The compositions of lipopolysaccharides I and II, isolated from Coxiella burnetii phase I and pure phase II cells, respectively, showed drastic and clear-cut differences. Lipopolysaccharide II exhibited a comparatively simple composition. It contained, in addition to glucosamine (from lipid A) and a 2-keto-3-deoxyoctulosonic acid-related, thiobarbituric acid-positive substance, only two aldoses in high amounts, namely D-mannose and D-glycero-D-mannoheptose. Lipopolysaccharide I contained the same components, but it also contained at least eight other constituents including neutral sugars, e.g., an unusual branched sugar (3-C-methyl-6-deoxy-hexose) and unusual aminohexoses. Some components were characterized by a very high retention time in gas-liquid chromatography. The similarity of the phase variation in C. burnetii to the well-known smooth-to-rough mutation found in Enterobacteriaceae is discussed. Cells of phase I correspond to enterobacterial smooth forms, whereas cells of phase II might be compared to the rough forms.
Publisher
American Society for Microbiology
Subject
Infectious Diseases,Immunology,Microbiology,Parasitology
Cited by
64 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献