Plant lipoxygenases may be involved in a number of diverse aspects of plant physiology including growth and development, pest resistance, and senescence or responses to wounding. Catalyzes the hydroperoxidation of lipids containing a cis,cis-1,4-pentadiene structure (By similarity). 13S-lipoxygenase that can use linolenic acid as substrates. (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. Lipid metabolism; oxylipin biosynthesis. Expressed in leaves. Expression is greatly increased in leaves during leaf senescence. Induced by bacterial pathogens (e.g. Pseudomonas syringae pv. tomato), ozone O(3), and wounding. Belongs to the lipoxygenase family.