The Effect of 3-Indolylacetic Acid on the Binding of Pectin Methylesterase to the Cell Walls of Tobacco Pith

Abstract

3-Indolylacetic acid (IAA) was found to promote the binding of pectin methylesterase (PME) to a cell wall fraction prepared from tobacco pith, the effect being increased by increasing concentration of IAA to a peak of activity, after which inhibition occurred.