Rhamnose Bound Indole-3-Acetic Acid in the Floral Parts of Peltophorum ferrugineum

The presence of rhamnose bound indole-3-acetic acid (IAA) was reported from acetone extract of anthers and carpels of the flowers of Peltophorum ferrugineum. Hydrolysis of the sugar ester gave IAA and rhamnose. Identification of IAA was based on physical measurements supported by bioassay. Bound and free IAA were not detected in petals, seeds and seed coats.