Plant lipoxygenase may be involved in a number of diverse aspects of plant physiology including growth and development, pest resistance, and senescence or responses to wounding. This enzyme is possibly involved in jasmonic acid synthesis. It exhibits linoleate 13-lipoxygenase and arachidonate 15-lipoxygenase activity. (9Z,12Z)-octadecadienoate + O2 = (13S)-hydroperoxy-(9Z,11E)-octadecadienoate (9Z,12Z,15Z)-octadecatrienoate + O2 = (13S)-hydroperoxy-(9Z,11E,15Z)-octadecatrienoate Binds 1 Fe cation per subunit. Iron is tightly bound. Optimum pH is 7. Lipid metabolism; oxylipin biosynthesis. Transient induction by exogenous methyl jasmonate, reaching a maximum 48 hours after treatment. Not induced by endogenous jasmonic acid resulting from sorbitol stress. The N-terminus is blocked. Belongs to the lipoxygenase family.