HPL — Solanum tuberosum

Summary

PGSC0003DMG400001078, the potato HPL gene on chromosome 7, encodes a fatty acid hydroperoxide lyase belonging to the cytochrome P450 family. The enzyme exhibits allene oxide synthase, allene-oxide cyclase, hydro-lyase, lyase, monooxygenase, and oxidoreductase activities, and binds iron and heme. HPL is associated with the lipoxygenase pathway, oxylipin metabolism and biosynthesis, jasmonic acid biosynthesis, fatty acid metabolism, and responses to wounding, insects, and defense. It is linked to cold acclimation, cell death, innate immunity, and sensitization. The protein localizes to chloroplast membranes, including the outer, inner, thylakoid, and envelope membranes. HPL is associated with sporogenesis, flavonoid content, insect damage response, susceptibility to Pseudomonas syringae, C6 volatile production, arabidopside accumulation, insect resistance, volatile synthesis, and hexenal signaling. Studies of related genes in other species link the family to fruit flavor, aroma, green leaf volatile biosynthesis, and aphid resistance.