HISTOCHEMISTRY OF TISSUE CULTURE CELLS: A STUDY OF THE EFFECTS OF FREEZING AND OF SOME FIXATIVES
1 Tissue and Organ Culture Unit, Imperial Cancer Research Fund, Lincoln's Inn Fields, London, W.C.2.
It has been shown that a) the membranes of HeLa and L cell lysosomes are readily permeable to naphthol AS-AM phosphate when used as a substrate for acid phosphatase, b) freezing as well as fixation affect the permeability of the lysosomal membrane to both naphthol AS-AM phosphate and
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