Variants in the histochemical patterns of lipids in the hepatopancreas of Scylla serrata (Forskal) (Brachyura, Decapoda).
The highest concentrations of phospholipid, neutral lipid and fatty acids were observed in the R cells and connective tissue of the hepatopancreas of Scylla serrata. The basal parts of the B cells and apical parts of the cells lining the main duct also showed moderate presence of these substances. The E cells however, except at their cell membranes were found to be devoid of lipids. F cells on the other hand exhibited lipoid complexes. Considerable reduction in the staining intensity of fatty acids were noticed 4 h after the bilateral ablation of eyestalks, neutral lipid undergo depletion 24 h after the operation whereas phospholipid reserves increase 48 h after the eyestalk removal. A fall in the quantity of neutral lipid and phospholipid was conspicuous when eyestalk extract was injected into normal or destalked crabs. From the present data it appears that R cells and connective tissue form major sites of lipid storage and in an intermolt animal eyestalk factor(s) may have an important role in the control of lipid metabolism.
D000818:Animals; D003386:Brachyura / Q000032:analysis*; D002462:Cell Membrane / Q000032:analysis; D003238:Connective Tissue / Q000032:analysis; D003593:Cytoplasm / Q000032:analysis; D004064:Digestive System / Q000032:analysis / Q000166:cytology; D005123:Eye; D005227:Fatty Acids / Q000032:analysis; D006651:Histocytochemistry; D008055:Lipids / Q000032:analysis*; D010743:Phospholipids / Q000032:analysis; D013194:Staining and Labeling; D014020:Tissue Extracts / Q000494:pharmacology; D014617:Vacuoles / Q000032:analysis
D005227:Fatty Acids; D008055:Lipids; D010743:Phospholipids; D014020:Tissue Extracts