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Infect Immun. 1977 March; 15(3): 890-896

Ultrastructural investigations on surface structures involved in Coxiella burnetii phase variation.

ABSTRACT

By using the cytochemical staining procedure with concanavalin A, horseradish peroxidase, and diaminobenzidine, no surface carbohydrates with terminal alpha-glucosyl or sterically closely related residues could be detected on the cell walls of Coxiella burnetii phases I and II. Using a polycationized ferritin derivative as a cytochemical probe, anionic binding sites were visualized in the electron microscope on cell membranes of C. burnetii phase II, but not on phase I organisms. The sites appeared to be masked in phase I particles. Anionic sites could be demonstrated on phase I organisms after treatment with NaIO4 or dimethyl sulfoxide. A number of different biological properties of C. burnetii phases I and II may depend on the presence or absence of a net negative charge on the surface of the cell walls of these organisms.

This article has been cited by other articles:

• Miller, J. D., Thompson, H. A. (2002). Permeability of Coxiella burnetii to ribonucleosides. Microbiology 148: 2393-2403 [Abstract] [Full Text]