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. 1958 Sep 25;4(5):575-7.
doi: 10.1083/jcb.4.5.575.

Cytochemical localisations and ultrastructure in the fertilized unsegmented egg of Paracentrotus lividus

J J PASTEELS, P CASTIAUX, G VANDER-MEERSSCHE

Cytochemical localisations and ultrastructure in the fertilized unsegmented egg of Paracentrotus lividus

J J PASTEELS et al. J Biophys Biochem Cytol. .

Abstract

Fertilized, but still unsegmented, eggs of the sea urchin Paracentrotus lividus have been centrifugated at 30,000 gravity. A comparison has been made between the cytochemical reactions of the different layers (RNA, polysaccharides, acid phosphatase) and the fine structure as shown in thin sections studied with the electron microscope.

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