Zur Biosynthese der Peptidalkaloide von Claviceps purpurea / Biosynthesis of Peptide Alkaloids of Claviceps purpurea

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Abstract
Using a strain of Claviceps purpurea which produces under submerged conditions chanoclavine, ergometrine and mainly ergotoxine the biosynthesis of ergoline derivatives has been studied. DL-Tryptophan- (ring-2-14C) is specifically incorporated into the lysergic acid moiety of ergotoxine· alkaloids. L-Proline-U-14C serves as a precursor of the proline-part of the peptid-chain of ergotoxine.