Complex carbohydrates in shell precursor globules of the vitellarium and at the eggshell of Hymenolepis microstoma (Cestoda).

摘要: The vitellocytes of Hymenolepis microstoma contain protein globules as building material for the shell egg cocoons. Complex carbohydrates were detected an additive component, dispersed in matrix globules. Similar glycans found at newly formed shells, suggesting that these molecules are provided by vitellocytes. remained associated with surface mature eggs. Carbohydrate residues, characterized using gold-labeled lectins, N-acetylglucosamine, galactose, or N-acetyllactosamine sequence residues and N-acetylgalactosamine, whereas glucose, mannose, fucose not demonstrable. scarcely stained periodic acid-Schiff and, thus, seem to have few diols, they did bind cationic dye, indicating glycosaminoglycans. Since occur significant amounts, may fundamental, yet undetermined function(s) formation shells and/or interactions cocoons host.