Abstract
IN several experiments in which arginine uniformly labelled with carbon-14 was fed to various tissues of pines, one unidentified compound was found to contain most of the radioactivity incorporated into alcohol-soluble products. When tissue extracts were cleared for chromatography following the ion-exchange procedure of Plaisted1, the unknown was eluted from ‘Dowex 50’ resin with the acidic and neutral amino-acids. However, the RF of the unidentified compound on paper chromatography did not correspond with the RF of any common amino-acid. Subsequent tests indicated that the radioactive unknown was γ-guanidinobutyric acid, previously found in several species of higher plants, as well as in insects and mammals, by Irreverre et al.2.
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References
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Irreverre, F., Evans, R. L., Hayden, A. R., and Silber, R., Nature, 180, 704 (1957).
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BARNES, R. Formation of γ-Guanidinobutyric Acid in Pine Tissues. Nature 193, 781 (1962). https://doi.org/10.1038/193781a0
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DOI: https://doi.org/10.1038/193781a0
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