In 1941, Wieland isolated the toxin alpha-amanitin, the principal active agent of one of the world's most poisonous mushrooms Amanita phalloides.
Otto von Bismarck | Heinrich Himmler | Heinrich Heine | Heinrich Schütz | Otto | Johann Heinrich Pestalozzi | Heinrich von Kleist | Otto III | Otto Piene | Otto I, Holy Roman Emperor | Otto I | Heinrich Böll | Otto Preminger | Otto II | Otto Dix | Heinrich Isaac | Christoph Martin Wieland | Otto Natzler | Otto II, Holy Roman Emperor | Otto Binder | Heinrich Marschner | Baron Hans Heinrich Thyssen-Bornemisza | Otto Skorzeny | Otto Schenk | Otto of Brunswick | Otto Kerner, Jr. | Wieland Wagner | Otto Steinbrinck | Otto Kerner | Otto IV, Holy Roman Emperor |