The maize death acids, 10-oxo-11-phytoenoic acid and derivatives, are rapidly induced phytoalexins with multiple biological activities

ABSTRACT: Plant cellular damage promotes the interaction of lipoxygenases (LOX) with free fatty acids to yield 9- and 13-hydroperoxides which are further metabolized into diverse oxylipins. The enzymatic action of 13-LOX on linolenic acid enables production of 12-oxo-phytodienoic acid (12-OPDA) and its downstream products, jointly known as jasmonates. As signals, jasmonates have related yet distinct roles in the regulation of plant resistance against insect and pathogen attack. An additional and conceptually parallel pathway involving 9-LOX activity on linoleic acid leads to the production of 10-oxo-11-phytoenoic acid (10-OPEA). Despite structural similarity to jasmonates, physiological roles for 10-OPEA have remained unclear. Both 12-OPDA and 10-OPEA equally promote the transcription of numerous de

ORGANISM(S): Zea mays

SUBMITTER: Robert Schmitz 

PROVIDER: E-GEOD-68589 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress