Abstract
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 pits had similar sugar residues with the exception of N‐acetylgalactosamine which was less diffused. Gastric glands were characterized by the presence of glycoconjugates containing galactosyl(β1→3)N‐acetylgalactosamine, N‐acetylglucosamine, galactosyl(β1→4) N‐acetylglucosamine, N‐acetylgalactosamine and a small amount of sialic acid linked to N‐acetylgalactosamine.
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