DES — Nicotiana attenuata

Summary

A4A49_32213 (DES, DES1) in coyote tobacco (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. It is associated with oxylipin and jasmonic acid biosynthesis, fatty acid metabolism, jasmonic acid signaling, the response to wounding, defense responses, and sterol metabolism. The gene product localises to the chloroplast membrane, inner membrane, thylakoid membrane and envelope, as well as the cytosol. DES is linked to photosynthetic rate and arbuscular mycorrhizal fungal colonization. Studies of related genes in other species connect the family to traits including jasmonic acid content, relative yield, fruit flavor, linoleic acid content, root volume, seed coat color, starch and sugar content, fruit size, root length, net photosynthetic rate, photochemical quenching, and sporogenesis, as well as phenotypes such as volatile aldehyde production and alpha-ketol formation.