Nuclear basic protein changes during spermiogenesis in the longnose skate and the spiny dogfish

The Journal of Experimental Zoology
N C BolsH E Kasinsky


Nuclear shape and the organization of nuclei within the seminiferous follicles have been used to divide spermiogenesis in the longnose skate, Raja rhina, into eight stages and in the spiny dogfish, Squalus acanthias, into seven stages. Cytochemical techniques for basic proteins reveal that as spermatid nuclei begin to elongate they have the somatic histone complement, and as they complete elongation they contain a very arginine-rich, TCA-extractable complement, or the salmon sperm histones type. After the nuclei have developed their ultimate corkscrew shape the final transition takes place to a very arginine-rich, TCA-stable complement, or the mammalian sperm histone type. These nuclei were not rich in sulfhydryl groups, but they were extractable with sodium thioglycolate. In addition, a number of variables affecting TCA extraction and subsequent alkaline fast green staining are described.


Feb 1, 1975·The Journal of Cell Biology·D Alder, M A Gorovsky
Mar 1, 1971·Stain Technology·R W Horobin, I M Kevill-Davies
Nov 28, 1972·Biochimica Et Biophysica Acta·J P CoelinghA Ruhfus
Apr 1, 1974·Canadian Journal of Zoology·N C Bols, H E Kasinsky
Jan 1, 1966·Zeitschrift für Zellforschung und mikroskopische Anatomie·H P Stanley
Jul 1, 1967·Archives of Biochemistry and Biophysics·K Kobashi, B L Horecker
Sep 26, 1952·Science·R J BARRNETT, A M SELIGMAN
Mar 25, 1956·The Journal of Biophysical and Biochemical Cytology·M ALFERT
Jul 1, 1957·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·D G TEIGERH S DISTEFANO
Jun 1, 1960·The Journal of Biophysical and Biochemical Cytology·D P BLOCH, H Y HEW
Sep 1, 1961·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·A D DEITCH
Jan 1, 1955·The Journal of Biophysical and Biochemical Cytology·D P BLOCH, G C GODMAN
Oct 1, 1953·Proceedings of the National Academy of Sciences of the United States of America·M Alfert, I I Geschwind

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May 1, 1982·The Journal of Cell Biology·R Balhorn
Apr 1, 1985·The Journal of Experimental Zoology·H E KasinskyJ A Subirana

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