title: [Light and electron microscopic localization of cholinesterase activity in a marine invertebrate (Nereis pelagica L., Annelida, Polychaeta)].
abstract: High specific and nonspecific cholinesterase activities have been demonstrated in the whole nervous system of Nereis. These might reveal the existence of a cholinergic nervous system whose control would be exerted in different sites (central nervous centers, muscular junctions...).
mesh_terms: D000818:Animals; D002800:Cholinesterase Inhibitors / Q000494:pharmacology; D002802:Cholinesterases / Q000378:metabolism*; D006651:Histocytochemistry; D008854:Microscopy, Electron; D009420:Nervous System / Q000201:enzymology; D010830:Physostigmine / Q000494:pharmacology; D011077:Polychaeta / Q000201:enzymology*
chemical_list: D002800:Cholinesterase Inhibitors; D010830:Physostigmine; D002802:Cholinesterases
vernacular_title: Localisation en microscopies photonique et électronique de l'activité cholinestérasique chez un invertébré marin (Nereis Pelagica L., Annélide polychète)