DISCREPANCIES BETWEEN CYTOPHOTOMETRIC FEULGEN-VALUE AND DNA CONTENT

Many results of Feulgen cytophotometry published by numerous authors and some new data of our own demonstrate the possibility of pitfalls when interpreting Feulgen values in relation to DNA content of cell nuclei. As a consequence of chemical and biophysical alterations of chromatin in the course of cellular development and during different functional states there are different Feulgen values to be found in cell nuclei containing the same amount of DNA. © 1969 Springer-Verlag.