LOX1 — Capsicum annuum

Summary

CaLOX1 (T459_08088) 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 protein contains lipoxygenase and PLAT/LH2 domains and localises to the plastid and cytoplasm. CaLOX1 is associated with lipid oxidation, oxylipin anabolism, jasmonic acid anabolism, membrane breakdown, terpenoid anabolism, and responses to wounding, abscisic acid, and jasmonic acid. It is linked to programmed cell death, immune response, defence response to bacteria, downregulation of defense response to insect, lateral root formation, and root development. The gene has been connected to pathogen resistance, including powdery mildew and Cucumber mosaic virus, as well as tolerance to drought, heat, salt, oxidative stress, and cadmium. Associations with photosynthetic rate, respiration, seed germination, fruit aroma, and stomatal closure have also been observed.