The amount of peroxidases not able to degrade IAA is crucial in the conversion of this compound by the IAA degrading enzymes. These peroxidases probably serve as a radical trap and are inactivated in the process. Cofactors remedy this situation. Possible reaction schemes are given.

Acta botanica neerlandica

CC BY 3.0 NL ("Naamsvermelding")

Koninklijke Nederlandse Botanische Vereniging

C.A. van der Mast. (1970). The influence of membrane-bound peroxidases on the degradation of IAA by the specific IAA degrading protein complexes in homogenates of pea roots. Acta botanica neerlandica, 19(5), 727–736.