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Journal of Experimental Biology 158,531-537 (1991)
Published by Company of Biologists 1991

Distribution of Carbonic Anhydrase in the Uterus of Late-Term Pregnant Spiny Dogfish (Squalus Acanthias)

CASSANDRA FLÜGEL 1 and ELKE LÜTJEN-DRECOLL 1

1 Department of Anatomy, University of Erlangen-Nürnberg, Krankenhausstraße 9, 8520 Erlangen, Germany

Carbonic anhydrase (CA) activity was localized in the late-term pregnant spiny dogfish uterus using the modified histochemical staining method of Hansson. Staining was found in the cytoplasm of red blood cells and in the membranes of the endometrial epithelial cells. Under the electron microscope, reaction products were seen in the basolateral membranes of the superficial cells, whereas the apical membranes were unstained. The cells of the underlying layer contacting the stromal capillaries showed staining in all their membranes. This staining pattern is similar to that found in other epithelia noted for active ion transport.

Key words: carbonic anhydrase, late-term pregnant spiny dogfish uterus, histochemistry, squalus acanthias

Accepted on January 31, 1991






© The Company of Biologists Ltd 1991