Carbohydrate and protein histochemistry during oogenesis inHalobatrachus didactylus (Schneider, 1801) from the Bay of Cadiz (Spain) |
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| Authors: | M L Gonzalez De Canales M Blanco and M C Sarasquete |
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| Institution: | (1) Biología, Facultad de Ciencias del Mar, Polígono del Río San Pedro, Apdo oficial, 11510 Puerto Real, Spain;(2) Instituto de Ciencias Marinas de Andalucía (CSIC), Polígono del Río San Pedro, Apdo oficial, 11510 Puerto Real, Spain;(3) Dpto de Ciencias Morfológicas, Facultad de Medicina, Plaza de Fragela, 11002 Cadiz, Spain |
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| Abstract: | Summary Histological and histochemical characteristics were studied inHalobatrachus didactylus (Schneider, 1801) during oogenesis. Three phases could be differentiated: previtellogenesis (oogonia and basophilic oocytes), vitellogenesis (yolk synthesis) and maturation-spawning. Glycogen, glycoproteins and proteins rich in certain amino acids were present in the previtellogenic as well as in the vitellogenic cytoplasm oocytes. No acid mucosubstances were detected. Three types of yolk (vesicles, vacuoles and granules) contained different types of organic reserves; granules were essentially proteic whereas globules were lipidic. Carbohydrates and proteins were present in vesicles. |
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