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. 1956 Jul 25;2(4 Suppl):393-6.
doi: 10.1083/jcb.2.4.393.

Small granules in the amphibian oocyte nucleus and their relationship to RNA

J G GALL

Small granules in the amphibian oocyte nucleus and their relationship to RNA

J G GALL. J Biophys Biochem Cytol. .

Abstract

Small particles (100 to 300 A in diameter) are seen in sections of nucleoli, the loops of the amphibian lampbrush chromosomes, and the Balbiani-ring regions of dipteran salivary-gland chromosomes. All of these structures contain cytochemically demonstrable RNA. Furthermore, the annuli seen on the nuclear envelope are composed of small particles which are similar to or identical with those commonly associated with the endoplasmic reticulum. It seems likely that ribonucleoproteins are organized as small particulates in the nucleus as well as in the cytoplasm.

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