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Über den Einbau von Asparaginsäure in Peganin

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Summary

Aspartate-3-C14 (XIII) was administered to young plants ofAdhatoda vasica Nees. After a feeding period of 1 or 2 days, the isolated alkaloid peganine (=vasicine) (I) was degraded. The distribution of the radioactivity in the anthranilic acid (II) and glycine (XIV) obtained has been determined (Figure). Most of the radioactivity (∼80%) was localized in the glycine corresponding to the positions 1 and 2 of peganine. More radioactivity was recovered from position 2 of the alkaloid than from position 1. The labelling pattern is discussed. The results indicate either that aspartate or a closely related compound is an immediate precursor of peganine.

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Authors and Affiliations

  1. Deutsche Akademie der Wissenschaften, Institut für Biochemie der Pflanzen, Halle (Saale), DDR

    D. Gröger, S. Johne & K. Mothes

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  1. D. Gröger
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  2. S. Johne
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  3. K. Mothes
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Gröger, D., Johne, S. & Mothes, K. Über den Einbau von Asparaginsäure in Peganin. Experientia 23, 812–813 (1967). https://doi.org/10.1007/BF02146856

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