12-oxo Phytodienoic acid (OPDA) is a biologically active, immediate precursor of 7-epi jasmonic acid. In addition to its link with jasmonic acid activity, OPDA appears to play an independent role in mediating resistance to pathogens and pests. As an endogenous signal transducer, OPDA has been shown to increase alkaloid biosynthesis in E. californica cell cultures, increase tendril coiling of B. dioica, and suppress jasmonic acid-induced programmed cell death in a conditional A. flu mutant.
The octadecanoid 12-oxo-phytodienoic acid (OPDA) is an intermediate in biosynthesis of jasmonic acid in plants. 12-Oxo-phytodienoic acid (OPDA)-induced expression changes in Arabidopsis by cDNA macroarray.
ChEBI: (15Z)-12-oxophyto-10,15-dienoic acid is a carbocyclic fatty acid, an oxo carboxylic acid and an olefinic fatty acid. It is a conjugate acid of a (15Z)-12-oxophyto-10,15-dienoate.