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[Electron microscopic observations on Pseudomonas cocovenenans].

N Xie1, L Wang, S Lang

  • 1National Institute for the Control of Pharmaceutical and Biological Products, Beijing.

Wei Sheng Wu Xue Bao = Acta Microbiologica Sinica
|December 1, 1990
PubMed
Summary

Researchers studied three strains of food-poisoning Pseudomonas bacteria, identifying common fine structures like rods, multiflagella, and unique inclusions. This electron microscope study reveals previously unreported characteristics of these pathogenic microorganisms.

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Area of Science:

  • Microbiology
  • Bacteriology

Context:

  • Food-borne illness outbreaks linked to contaminated fermented foods.
  • Identification of pathogenic microorganisms is crucial for public health.

Purpose:

  • To describe the fine structures of three specific strains of Pseudomonas bacteria using electron microscopy.
  • To compare and contrast the ultrastructural characteristics of these food-poisoning bacteria.

Summary:

  • Three strains of food-poisoning Pseudomonas bacteria, including P. cocovenenans and P. cepacia, were examined via electron microscopy.
  • Common ultrastructural features observed include short rods, polar multiflagella, intranuclear inclusions, intracytoplasmic PHB granules, and the formation of filaments, minicells, and bizarre cells.
  • Previously unreported characteristics include the production of extracellular cellulose-like materials by these strains.

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Impact:

  • Provides detailed ultrastructural data for the taxonomic classification of these Pseudomonas species.
  • Contributes to understanding the morphology of food-borne pathogens, potentially aiding in detection and control strategies.
  • Highlights novel extracellular material production, opening avenues for further research into bacterial biopolymers.