the main intermediate of the enzyme observed during the oxygen-consuming reaction was compound ii , which oxidized iaa to its free radical at rate constants of 1.5 x 10 ( 3 ) m-1 -- s1 for peroxidase a and 1.2 times 10 ( 4 ) m-1 -- s-1 for peroxidase c at ph 4.4 the results supported the mechanism that the oxygen consumption occurs mainly through the reaction of oxygen with the iaa free radical formed from the peroxidatic oxidation of iaa .
C0027021
peroxidase
C0030011
oxidation