What are the principal enzymes oxidizing the xenobiotics in plants: cytochromes P-450 or peroxidases? (A hypothesis).

Effectively no information is available at present concerning the enzymes which directly participate in the in vivo oxidation of xenobiotics in plants. Based on the known data a hypothesis is presented suggesting that only a minor part of the oxidation of xenobiotics in plants may be catalyzed by cytochrome P-450, the majority of xenobiotics being oxidized by plant peroxidases.