Fd. Knudsen et al., PLANT HORMONE ETHYLENE IS A NORRISH TYPE-II PRODUCT FROM ENZYMATICALLY GENERATED TRIPLET 1-BUTANAL, Proceedings of the National Academy of Sciences of the United Statesof America, 91(1), 1994, pp. 410-412
The peroxidase-catalyzed aerobic oxidation of a linear aldehyde, leadi
ng to the next lower homologue in the triplet state, is accompanied by
Norrish type II product ethylene when the substrate is pentanal. This
system appears to provide an example of ''photobiochemistry without l
ight'' because ethylene is a plant hormone and is formed in lipid pero
xidation when the recurrent oxidation of linear aldehydes occurs.