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Digitale Medien

Carbonic Anhydrase and Formation of the Hen's Egg Shell (1963)

ROBINSON, D. S. ; KING, N. R.

[s.l.] : Nature Publishing Group

Nature 199 (1963), S. 497-498

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] This preliminary report of work using histological staining techniques indicates that the mammillary layer can be considered both as a special layer of the outer shell membrane and as an initiator of shell deposition. Mammillary layer preparations were made by decalcifying pieces of shell for 60 ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/199497a0

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Digitale Medien

The occurrence of neutral and acidic mucins in the reproductive tract of the laying hen (1968)

Robinson, D. S. ; King, N. R. ; Bowen, D. J.

Springer

Histochemistry and cell biology 13 (1968), S. 97-104

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ISSN: 1432-119X

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie , Medizin

Notizen: Summary The tissues of the domestic hen's reproductive tract have been shown to contain both acidic and neutral mucins. The presence of an egg in the isthmus was always accompanied with an increase in the concentration in the isthmus secretory epithelium of PAS-positive mucins without free acidic groups. Staining of uterine tissue for strongly acidic groups with basic dyes was greater when an egg had been present in the shell gland at the time of death and the same was true for tissues of the upper oviduct. The results are discussed with special reference to the periodic secretion of organic mammillary core and egg shell mucins.