Glycoconjugates of the intestinal goblet cells of four cyprinids.
The aim of this work was to show differences in the terminal and subterminal sugar composition of carbohydrate chains of glycoconjugates produced by the goblet cells of the intestines of four cyprinids. We analysed intestines of two herbivorous species--sneep and grass carp--and two omnivorous ones--chub and common carp. We compared four intestinal regions of every studied species. In every region, the presence of neutral and acidic glycoconjugates was confirmed. The smallest amount of acidic glycoconjugates was present in the second region of sneep intestine. Sulphated glycoconjugates were absent in the third and fourth region of chub intestine. Lectin histochemistry provided evidence for the presence of beta-D-galactose, a-N-acetylgalactosamine, beta-N-acetylglucosamine and sialic acids. Additionally, the occurrence of alpha-L-fucose in the goblet cells of chub, grass carp and sneep was confirmed. We tried to correlate the pattern of glycoconjugate glycosylation with feeding habits of the studied fishes.[1]References
- Glycoconjugates of the intestinal goblet cells of four cyprinids. Fiertak, A., Kilarski, W.M. Cell. Mol. Life Sci. (2002) [Pubmed]
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