Metaphase preparations of Drosophila melanogaster were irradiated with visible light in the presence of either Methylene-blue, Coriphosphine-O or Acridine-Orange. After treatment with any of these three compounds, Coriphosphine-O staining shows an identical green/orange-red/brown-red chromosome pattern. These findings are discussed in the light of previous reports and guanine destruction is hypothesized as representing the most plausible mechanism for explaining the cytological results
Methylene-blue/coriphosphine-O/acridine-orange, chromosomal DNA and visible light: Interaction and cytological effect in Drosophila melanogaster
MARCHI, ANNALISA
1981-01-01
Abstract
Metaphase preparations of Drosophila melanogaster were irradiated with visible light in the presence of either Methylene-blue, Coriphosphine-O or Acridine-Orange. After treatment with any of these three compounds, Coriphosphine-O staining shows an identical green/orange-red/brown-red chromosome pattern. These findings are discussed in the light of previous reports and guanine destruction is hypothesized as representing the most plausible mechanism for explaining the cytological results
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