title: [The activities of the transmitter metabolizing enzymes monoamineoxidase and acetylcholinesterase and of succinic dehydrogenase were investigated in the telencephalon of Salmo irideus (teleostei) (author's transl)].
abstract: The activities of the transmitter metabolizing enzymes monoamineoxidase and acetylcholinesterase and of succinic dehydrogenase were investigated in the telencephalon of Salmo irideus (teleostei). There is a high reaction intensity of the MAO in the whole telencephalon with graded differences between the various nuclear areas. It is highest in the area dorsalis telencephali; the larger fiber tracts (Tr. olfactorius medialis et lateralis; medial and lateral forebrain bundle) are strong MAO-positive, too. There is an extremely weak AchE-reaction throughout the telencephalon. The only nuclear area which is clearly histochemically demonstrable is the regio Dm2 in the area dorsalis telencephali. The SDH-activity is demonstrable in the whole telencephalon. The activity is higher in the area dorsalis as compared with the area ventralis telencephali. In the ependym there are only a few traces of MAO- and SDH-reaction products. The recent findings may support, from a histochemical view, the hypothesis that the telencephalon of Salmo irideus represents brain structures which show structural and functional similarities with limbic telencephalic structures of higher vertebrates.
mesh_terms: D000110:Acetylcholinesterase / Q000032:analysis*; D000818:Animals; D004027:Diencephalon / Q000201:enzymology*; D006651:Histocytochemistry; D008474:Medial Forebrain Bundle / Q000201:enzymology; D008995:Monoamine Oxidase / Q000032:analysis*; D009832:Olfactory Nerve / Q000201:enzymology; D012474:Salmon; D013385:Succinate Dehydrogenase / Q000032:analysis*; D013687:Telencephalon / Q000201:enzymology*
chemical_list: D013385:Succinate Dehydrogenase; D008995:Monoamine Oxidase; D000110:Acetylcholinesterase
vernacular_title: Zur Enzymhistochemie des Vorderhirns von Salmo irideus (Teleostei).