LOX1 — Capsicum annuum

Summary

LOX1 (also known as LOX5) on pepper chromosome 3 encodes a lipoxygenase with linoleate 9S- and 13S-lipoxygenase activity, an oxidoreductase acting on single donors with incorporation of molecular oxygen. The protein contains lipoxygenase and PLAT/LH2 domains and localises to the plastid and cytoplasm. It is associated with the lipoxygenase pathway, lipid oxidation, oxylipin and jasmonic acid anabolism, fruit ripening, cell death, and responses to wounding and jasmonic acid. The gene has been linked to fruit flavor, pungency, respiration rate, photosynthetic rate, and tolerance to drought, salt, heat, and oxidative stress. Associations also include pathogen resistance, seed aging tolerance, aphid resistance, and resistance to Cucumber mosaic virus and powdery mildew. Studies of related genes in other species link the family to linoleate oxygenation, leaf senescence, lipid peroxidation, cold tolerance, and disease resistance.