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1. Bacterial spores are highly resistant to the bactericidal action of the triphenylmethane dyes. Many Bacillus anthracis and Bacillus subtilis spores resist a saturated aqueous solution of gentian violet for 24 hours at 37 degrees C. They also resist exposure to the same dye solution for 10 minutes at 80 degrees C. 2. The selective bactericidal action of(More)
Recent experiments upon the effects of dyes on cells have raised some interesting questions as regards the use of dyes in bacterio-logical technique and therapy. There is evidence to show that the majority of Gram-positive bacteria, both vegetative cells and spores, are more susceptible to the bactericidal action of gentian violet and other triphenylmethane(More)
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