title: Detection of 5-hydroxytryptamine in developing sea urchin embryos.
abstract: 5-Hydroxytryptamine has been determined in developing sea urchin embryos by means of chemical methods. An increase of the 5-hydroxytryptamine content can be correlated with the formation of neurons which occurs in the advanced gastrula and in young pluteus.
authors.affiliation: The Wenner-Gren Institute, Stockholm, Sweden.
authors.forename: Mark
authors.initials: M
authors.lastname: Toneby