Studies in cell suspension cultures of Cassia didymobotrya. Part VI. The biotransformation of chalcones to aurones and auronols.

Cell-free extracts derived from tissue cultures of Cassia didymobotrya, which previously had been reported to convert 4-hydroxychalcones to flavones and biflavanones catalyze the biotrasformation of 2-hydroxychalcones to aurones and auronols. The aurone was shown to be the direct precursor of auronol.