LOX1 — Capsicum annuum

Summary

CaLOX1 (T459_08087) on pepper chromosome 3 encodes a lipoxygenase with linoleate 9S- and 13S-lipoxygenase activity and oxidoreductase activity acting on single donors with incorporation of molecular oxygen. The enzyme is associated with lipid oxidation, oxylipin and jasmonic acid anabolism, and terpenoid anabolism. It is linked to membrane breakdown, programmed cell death, immune response, defence response to bacteria, downregulation of defense response to insect, response to wounding, and responses to abscisic and jasmonic acids. The protein localizes to plastids and the cytoplasm. CaLOX1 is associated with pathogen resistance, including powdery mildew resistance and resistance to Cucumber mosaic virus, as well as tolerance to oxidative stress, salt tolerance, drought tolerance, heat tolerance, and cadmium stress response. It is also associated with seed germination, seed aging tolerance, stomatal closure, fruit aroma, and photosynthetic and respiration rates. Studies of related genes in other species link the family to cold tolerance, disease resistance, leaf senescence, and root development.