Skip to main content
Applied Microbiology logoLink to Applied Microbiology
. 1974 Oct;28(4):713–716. doi: 10.1128/am.28.4.713-716.1974

Ultrastructure of the Surface of Rickettsia prowazeki and Rickettsia akari

Erskine L Palmer 1, Mary L Martin 1, Louis Mallavia 1
PMCID: PMC186803  PMID: 4138139

Abstract

Negative-contrast electron microscopy revealed that the outer layer of the envelope of rickettsiae is composed of a matrix of tetragonally arranged subunits. The layer projects approximately 7 nm from the cell wall. It is suggested that this outer layer is analogous to the structure considered capsule-like in morphology.

Full text

PDF

Images in this article

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Anacker R. L., Pickens E. G., Lackman D. B. Details of the ultrastructure of Rickettsia prowazekii grown in the chick yolk sac. J Bacteriol. 1967 Jul;94(1):260–262. doi: 10.1128/jb.94.1.260-262.1967. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Matsumoto A. Fine structures of cell envelopes of Chlamydia organisms as revealed by freeze-etching and negative staining techniques. J Bacteriol. 1973 Dec;116(3):1355–1363. doi: 10.1128/jb.116.3.1355-1363.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Palmer E. L., Mallavia L. P., Tzianabos T., Obijeski J. F. Electron microscopy of the cell wall of Rickettsia prowazeki. J Bacteriol. 1974 Jun;118(3):1158–1166. doi: 10.1128/jb.118.3.1158-1166.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Public Health Weekly Reports for May 31, 1946. Public Health Rep. 1946 May 31;61(22):761–800. [PMC free article] [PubMed] [Google Scholar]
  5. Thorne K. J., Thornley M. J., Glauert A. M. Chemical analysis of the outer membrane and other layers of the cell envelope of Acinetobacter sp. J Bacteriol. 1973 Oct;116(1):410–417. doi: 10.1128/jb.116.1.410-417.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Thornley M. J., Thorne K. J., Glauert A. M. Detachment and chemical characterization of the regularly arranged subunits from the surface of an Acinetobacter. J Bacteriol. 1974 May;118(2):654–662. doi: 10.1128/jb.118.2.654-662.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Applied Microbiology are provided here courtesy of American Society for Microbiology (ASM)

RESOURCES