Abstract
Summary
Vegetative cells of the common yeast Saccharomyces cerevisiae grown in a synthetic medium were incubated in the presence of 2 × 10-6 g/ml of Benzo(a)pyrene. Ultraviolet microscopic studies of cells in the logarithmic growth phase show isolated fluorescence of intracytoplasmic organelles which appear to be mitochondria on the basis of comparison with intravitally stained cells.
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