Journal article

Publication year: 1987

Pages: 21-36

Journal: Anatomia, Histologia, Embryologia

Volume number: 16

Issue number: 1

ISSN: 0340-2096

eISSN: 1439-0264

DOI Link: https://doi.org/10.1111/j.1439-0264.1987.tb00721.x

Publisher: Wiley

Abstract: 
Light and electron microscopical examinations were made of the Mg++-, (Mg++ Na+) -K+)- and the Ca++-ATPase on the cecal epithelium of bovine fetuses. The light microscope revealed the substances as continuous black lines, occupying in the area of the villi the entire height of the epithelium and in the area of the crypts only the apices of the cells. The electron microscope often revealed granules on inter- and perigranular cytoplasmic structures of the goblet cells. In concert with the light microscopical finds, however, the precipitates were found primarily as continuous black between the microvilli on the outer layer of the plasmalemma both in the area of the villi and of the crypts. The lateral cell borders of the epithelial cells showed intercellular reaction products only in the areas of the villi; there were also marked unspecific intracellular reactions. Cell junctions and desmosomes were always free of precipitates. It was not possible to demonstrate further stimulation of the Mg++-dependent basic activity by Na- and K-ions, neither was it possible to see differences in activity and locale between the Mg++-activated and the Ca++-ATPase. Generally, the intensity of the reactions was remarkably and evenly strong during the entire fetal period examined. An attempt was made to interpret different functional aspects of these enzyme complexes, possibly related to transport activity of these fetal intestinal epithelial cells.

Harvard Citation style: WILLE, K. (1987) THE ADENOSINTRIPHOSPHATASES OF THE FETAL LARGE INTESTINAL EPITHELIUM - LIGHT AND ELECTRON-MICROSCOPIC STUDIES OF THE BOVINE CECUMBOS-PRIMIGENIUS-TAURUS), Anatomia, Histologia, Embryologia, 16(1), pp. 21-36. https://doi.org/10.1111/j.1439-0264.1987.tb00721.x

APA Citation style: WILLE, K. (1987). THE ADENOSINTRIPHOSPHATASES OF THE FETAL LARGE INTESTINAL EPITHELIUM - LIGHT AND ELECTRON-MICROSCOPIC STUDIES OF THE BOVINE CECUMBOS-PRIMIGENIUS-TAURUS). Anatomia, Histologia, Embryologia. 16(1), 21-36. https://doi.org/10.1111/j.1439-0264.1987.tb00721.x