Semiautomated metabolic staining assay for Bacillus cereus emetic toxin

Appl Environ Microbiol. 1999 Apr;65(4):1811-2. doi: 10.1128/AEM.65.4.1811-1812.1999.

Abstract

This paper describes a specific, sensitive, semiautomated, and quantitative Hep-2 cell culture-based 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay for Bacillus cereus emetic toxin. Of nine Bacillus, Brevibacillus, and Paenibacillus species assessed for emetic toxin production, only B. cereus was cytotoxic.

MeSH terms

  • Bacillus cereus / isolation & purification
  • Bacillus cereus / metabolism*
  • Bacterial Toxins / biosynthesis*
  • Bacterial Toxins / toxicity
  • Bacteriological Techniques
  • Coloring Agents / metabolism
  • Emetics*
  • Foodborne Diseases / microbiology*
  • Humans
  • Tetrazolium Salts / metabolism
  • Thiazoles / metabolism
  • Tumor Cells, Cultured
  • Vacuoles

Substances

  • Bacterial Toxins
  • Coloring Agents
  • Emetics
  • Tetrazolium Salts
  • Thiazoles
  • thiazolyl blue