Summary
Human, chicken and mouse cells from different tissues show a bright red-orange fluorescence of the chromatin after staining with pyronin Y. The possibility that intercalation of the dye into double helical nucleic acids accounts for this fluorescence pattern is briefly discussed.
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This work was partially supported by a grant from the Comisión Asesora de Investigación Científica y Técnica, Spain.
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Armas Portela, R., Stockert, J.C. Chromatin fluorescence by pyronin staining. Experientia 35, 1663–1664 (1979). https://doi.org/10.1007/BF01953256
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DOI: https://doi.org/10.1007/BF01953256