The stomach of adult shi drum Umbrina cirrosa was investigated using a battery of nine horseradish peroxidase‐conjugated lectins combined with enzymatic treatment, in order to distinguish glycoconjugate sugar residues. Epithelial cells showed the presence of galactosyl(β1→4)N‐acetylglucosamine, mannose, N‐acetylgalactosamine, N‐acetylglucosamine, fucose and sialic acid‐galactosyl(β1→3)N‐acetylgalactosamine residues. Gastric pi...

The saccharide composition of surface and secretion glycoconjugates in the oesophagus of Umbrina cirrosa was examined by means of lectin histochemistry. Mucous cells showed the presence of N‐acetylgalactosamine, N‐acetylglucosamine and sialic acid linked to the dimer galactosyl(β1→3) N‐acetylgalactosamine. Columnar epithelial cells had a positive reaction with almost all the lectins employed, located in the supranuclear region...