title: [Presence of indoleamines in the pineal and parapineal organs of Lampetra planeri (Petromyzontidae)].
abstract: Using the Falck and Hillarp technique, the precursors of melatonin (5-HT and may be 5-HTP) have been identified in the pineal and parapineal organs of Lampetra planeri (Petromyzontidae). A particular kind of cell, the so-called "cells with residual bodies" (Collin, 1968), is responsible for this neurohormonal activity of the two organs.
mesh_terms: D006916:5-Hydroxytryptophan / Q000032:analysis*; D000818:Animals; D005399:Fishes / Q000378:metabolism*; D007798:Lampreys / Q000378:metabolism*; D010870:Pineal Gland / Q000032:analysis*; D012621:Seasons; D012701:Serotonin / Q000032:analysis*
chemical_list: D012701:Serotonin; D006916:5-Hydroxytryptophan
vernacular_title: Présence d'indolamines dans les organes pinéal et parapinéal de Lampetra planeri (Pétromyzontoïdes).