Abnormal Catabolites of Unsaturated Fatty Acids by In Vitro Reaction of Crude Enzyme from Infected Higher Plants
The reaction of α-linolenic acid with crude enzyme (lipoxygenase) obtained from infected pumpkins led to the formation of 8Z,11Z,14Z-heptadecatrienal (noraldehyde) and its acid (noracid) in addition to 13S-hyroperoxy linolenic acid.Since the noraldehyde and its acid were also isolated from the crude enzyme reaction of other infected plants, their formation seems to be related with the pathogen-infection of higher plants.