Epithelial Cytology and Function in the Digestive Gland of Thenus Orientalis (Decapoda: Scyllaridae)

• DOI: 10.2307/1549320
• Publication Date: 2006-05-09T12:50:43Z
• Authors: Johnston D. J.; Alexander C. G.; D. Yellowlees
• Keywords: Hindgut; Digestion

The morphology and epithelial cytology of the digestive gland slipper lobster Thenus orientalis is described. primary ducts possess extensive musculature which indicate that they may move fluid into out glands. Immunohistochemical localization trypsin demonstrated it synthesized secreted solely by F-cells in gland. Trypsin absent from tissue oral region, proventriculus, hindgut, but present throughout alimentary tract, indicating has a role extracellular digestion. Substantial accumulations lipid cytoplasm R-cells absorption storage digestion products. Residual bodies apical are consistent with metal-storing granular inclusions supranuclear vacuoles other decapods. Based on presence an complex pinocytotic vesicles subapical vacuoles, absorptive for B-cells evident. central vacuole role, although our results cannot distinguish whether enzyme endogenous (lysosomal versus digestive) or was absorbed tubule lumen excretion.