phytochrome-induced increases in enzyme activities for phenylalanine ammonia-lyase ( ec 4.3.1.5 ) and chalcone isomerase ( ec 5.5.1.6 ) , and in amounts of the related end products , anthocyanin and the flavonol , quercetin , were measured in cotyledons of mustard ( sinapis alba l. ) .
C0060444
flavonol
C0034392
quercetin