Summary
Alcohol-water solutions of 3-indoleacetonitrile were exposed to ultraviolet light for different time intervals. The products of the auxin destruction were separated on paper chromatograms and tested biologically. Indoleacetonitrile was found to be partially destroyed with ultraviolet radiation. The rate of the auxin destruction increased with the time of illumination. However after 27 hours of illumination the auxin was not completely destroyed. Among the products of the auxin destruction, indole-3-carboxylic acid was identified.
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Youssef, E., Kiermayer, O. Zur photolyse von Indol-3-acetonitril. Planta 49, 607–611 (1957). https://doi.org/10.1007/BF01911994
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DOI: https://doi.org/10.1007/BF01911994