SMALL GRANULES IN THE AMPHIBIAN OOCYTE NUCLEUS AND THEIR RELATIONSHIP TO RNA | Zendy

Joseph G. Gall | Zendy

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SMALL GRANULES IN THE AMPHIBIAN OOCYTE NUCLEUS AND THEIR RELATIONSHIP TO RNA

Author(s) -

Joseph G. Gall

Publication year - 1956

Publication title -

the journal of cell biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.414

H-Index - 380

eISSN - 1540-8140

pISSN - 0021-9525

DOI - 10.1083/jcb.2.4.393

Subject(s) - nucleolus , biology , cytoplasm , endoplasmic reticulum , nucleus , microbiology and biotechnology , ribonucleoprotein , rna , oocyte , cell nucleus , genetics , embryo , gene

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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