The Photochemical Inactivation of Indoleacetic Acid Sensitized by Non-Protein Components of Plant Tissues

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Abstract
A study has been made of the IAA-destroying activity of the brei of etiolated pea epicotyls other than that due to the enzyme IAA oxidase. The protein-free dialysate sensitizes the destruction of IAA in the light but not in the dark. Blueviolet light is most effective, followed by blue-green, green, red, and yellow.