title: Vitellogenesis in the crayfish Rhynchocinetes typus: role of hepatopancreas in lipid yolk biosynthesis.
abstract: Biochemical studies in lipid composition of yolk granules from the crayfish Rhynchocinetes typus is shown to be composed mainly of cholesterol and phospholipids. Thin layer chromatography analysis demonstrates phosphatidyl-choline, -ethanolamine and -serine as its major phospholipidic components. In vivo labeling experiments using 32P-orthophosphoric acid suggest that two of the major yolk phospholipid components, phosphatidyl -choline and -serine could be synthesized in the hepatopancreas and subsequently transported via hemolymph to the growing oocyte.
authors.affiliation: Laboratorio de Genética Molecular, Universidad Católica de Valparaíso, Chile.
authors.forename: G
authors.initials: G
authors.lastname: Muñoz
authors.forename: S
authors.initials: S
authors.lastname: Donghi
authors.forename: H
authors.initials: H
authors.lastname: Cerisola
mesh_terms: D000818:Animals; D003400:Astacoidea; D004530:Egg Yolk / Q000032:analysis*; D008055:Lipids / Q000032:analysis / Q000096:biosynthesis*; D008099:Liver / Q000378:metabolism; D010179:Pancreas / Q000378:metabolism; D014818:Vitellogenesis
chemical_list: D008055:Lipids