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Antonie van Leeuwenhoek

, Volume 36, Issue 1, pp 273–284 | Cite as

ExperimentalEscherichia coli pyelonephritis: Formation of spheroplasts in the kidney of the untreated rat

  • J. Demonty
Article

Abstract

An experimental hematogenous pyelonephritis produced in the rat byEscherichia coli was studied from the point of view of the possible rôle of L-forms of bacteria in chronic renal infection. Osmotically fragile cells were shown in the kidneys from the 3rd day after inoculation, and their percentage of the totalE. coli cell number increased during the course of the infection. In order to distinguish bacteria and spheroplasts of theE. coli strain used, two more methods were elaborated: 1) a bacteriological method based on the different sensitivity of bacteria and spheroplasts to erythromycin; this method confirmed the results obtained with osmotic shock; 2) an immunological method, using the indirect fluorescent antibody technique and an antiserum specifically labelling the spheroplasts; in kidneys removed 10–15 days after the inoculation, spherical bodies with morphological and antigenic characteristics similar to those of spheroplasts became visible.

Keywords

Erythromycin Pyelonephritis Coli Cell Coli Strain Osmotic Shock 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Swets & Zeitlinger 1970

Authors and Affiliations

  • J. Demonty
    • 1
    • 2
  1. 1.Laboratoire de Microbiologie générale et médicaleBelgium
  2. 2.Institut de Médecine, Département de Clinique et de Pathologie médicalesUniversité de LiègeBelgium

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