LOX — Solanum tuberosum

Summary

PGSC0003DMG400017465, designated StLOX and located on potato chromosome 5, encodes a lipoxygenase enzyme with linoleate 9S- and 13S-lipoxygenase activities, as well as phytoene dehydrogenase, peroxidase, and salicylic acid-binding functions. The protein localises to chloroplast thylakoids, stromules, stress granules, and the apoplast. StLOX is associated with the lipoxygenase pathway, oxylipin and jasmonic acid biosynthesis, wound healing, herbivore and chewing responses, and cell redox homeostasis. It has been linked to photoperiod-sensitive flowering, seed yield, photosynthetic rate, salt and low-temperature stress responses, root thickness, and jasmonic acid content. Phenotypic associations include wound response, jasmonate production, drought resistance, herbivore defence, cadmium and heat stress tolerance, lateral root development, and anther maturation. Studies of related genes in other species connect the family to jasmonate signalling, resistance to herbivory and necrotrophic pathogens, leaf senescence, and green leaf volatile production.