Induction of Enzymatic Activity by Indolyl-3-acetic Acid and its Dependence on Synthesis of Ribonucleic Acid

Abstract

IT has already been found in this Department¹ that pre-treating segments of pea stems with indolyl-3-acetic acid (IAA) or other active auxins greatly enhances the ability of the tissue to synthesize the aspartates of IAA and naphthalene-l-acetic acid. It is well known that benzoic acid also forms a conjugate with aspartic acid in pea tissues^2,3. It has now been shown: first, that IAA induces the formation of the system responsible for benzoylaspartate production; secondly, that the inductive effect of IAA is dependent on the synthesis of ribonucleic acid (RNA).