The digestive gland of Viviparus ater (Mollusca, Gastropoda, Prosobranchia): An ultrastructural and histochemical study
| Autor: | Antonella Franchini, A. M. Bolognani Fantin, B. Rebecchi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1996 |
| Předmět: |
Pathology
medicine.medical_specialty Cell type Intracellular digestion digestive gland Connective tissue Enteroendocrine cell Cell Biology General Medicine Biology Viviparus ater ultrastructure Epithelium Cell biology Tubule medicine.anatomical_structure mollusc histochemistry medicine Ultrastructure Endocytotic Process Developmental Biology |
| Popis: | The digestive gland of Viviparus ater was studied using histochemical and ultrastructural methods. Only one cell type was observed in the tubule epithelium of the gland. The cells are involved in an endocytotic process mediated by clathrin-coated vesicles and in the intracellular digestion of food materials (thus they can be regarded as digestive cells). The different stages of digestion and exocytotic extrusion of residual bodies into the tubule lumen were shown by electron microscopy. Very few, small mucocytes are scattered among the digestive cells. Calcium concretions, glycogen-containing cells and endocrine cells are scattered in the area of connective tissue present among the digestive tubules. |
| Databáze: | OpenAIRE |
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