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Histochemical study of carbohydrates in the scleral cartilage of the marine toadfish halbatrachus didactylus s

, : Histochemical study of carbohydrates in the scleral cartilage of the marine toadfish halbatrachus didactylus s. Anales del Desarrollo 29(65): 101-110

We carried out a histochemical study of carbohydrates in the marine toadfish's sclera in the South Atlantic coast of Spain at the essential substance's level and chondria's level. In the essential substance we observed a weak content of neutral complex mucopolysaccharides, and acid mucopolysaccharides (hyaluronic and chondroitin-4-and-6-sulphate), with prevalence in the previous portion, next to a certain rate of acid mucopolysaccharide resistant to the testicular hyaluronidase. In the cytoplasm of the chondria, we observed the existence of glycogen, glycoproteins with monosaccharides positive to concanavalin-A and acid mucopolysaccharides (hyaluronic and chondroitin-4-and-6-sulphates) with prevalence in the posterior portion. We outline, in a special way, a distributive map of the intensities of the different reactions carried out depending on whether we study the front or back pole of the eyeball.


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