B. Botta et al., STUDIES IN CELL-SUSPENSION CULTURES OF CASSIA-DIDYMOBOTRYA .6. THE BIOTRANSFORMATION OF CHALCONES TO AURONES AND AURONOLS, Heterocycles, 43(7), 1996, pp. 1415-1421
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 biotransformation of 2-hydroxy
chalcones to aurones and auronols. The aurone was shown to be the dire
ct precursor of auronol.