The cell wall of Rickettsia mooseri. I. Morphology and chemical composition.

Journal of Bacteriology
W H Wood, C G Wisseman

Abstract

Cell walls prepared by mechanically disrupting intact Rickettsia mooseri (R. typhi) were examined in an electron microscope and analyzed chemically. Electron micrographs of metal-shadowed and negatively stained rickettsial cell walls revealed no significant differences, except for smaller size, from bacterial cell walls prepared in a similar manner. The chemical composition was complex, and resembled that of gram-negative bacterial cell walls more closely than that of gram-positive bacterial cell walls. R. mooseri cell walls contained the sugars, glucose, galactose, and glucuronic acid, the amino sugars, glucosamine, and muramic acid, and at least 15 amino acids. Diaminopimelic acid, a compound hitherto found only in bacteria and blue-green algae, was demonstrated in rickettsiae for the first time. Teichoic acids were not detected. The compounds identified accounted for about 70% of the dry weight of the cell walls.

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Citations

Sep 1, 1978·Infection and Immunity·J V Osterman, C S Eisemann
Sep 1, 1973·Bacteriological Reviews·E Weiss
Jun 1, 1976·Infection and Immunity·M L ChanD Paretsky
Oct 1, 1978·Journal of Bacteriology·H H Winkler, E T Miller
Jun 1, 1975·Infection and Immunity·R L AnackerW D Bickel
Apr 1, 1975·Journal of Bacteriology·P R BurtonD Paretsky
Jun 1, 1984·Antimicrobial Agents and Chemotherapy·W F MyersC L Wisseman
Jun 1, 1974·Journal of Bacteriology·E L PalmerJ F Obijeski

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