DES — Nicotiana attenuata

Summary

A4A49_09687 (DES, also known as AOS3) in Nicotiana attenuata encodes a cytochrome P450 enzyme with allene oxide synthase, colneleate synthase, allene-oxide cyclase, lyase, monooxygenase and oxidoreductase activities, and binds iron and heme. The product localises to chloroplast membranes and the cytosol. The gene is associated with jasmonic acid and oxylipin biosynthesis, fatty acid metabolism, sterol metabolism, jasmonic acid signalling, defence response and response to wounding. It has been linked to photosynthetic rate and arbuscular mycorrhizal fungal colonisation. Studies of related genes in other species connect the family to jasmonic acid content, volatile aldehyde production, fruit flavour, linoleic acid content, and traits including relative yield, root volume, starch content, sugar content, fruit size, seed coat colour, sporogenesis, net photosynthetic rate and photochemical quenching.