AOS — Triticum aestivum

Summary

TRAESCS5A02G403200 (TaAOS) on wheat chromosome 5A encodes a cytochrome P450 enzyme with allene oxide synthase, colneleate synthase, allene-oxide cyclase, hydro-lyase, monooxygenase and oxidoreductase activities, binding heme and iron. It is associated with oxylipin metabolism, the lipoxygenase and epoxygenase P450 pathways, fatty acid and sterol metabolism, polyamine and methionine breakdown, stress-activated MAPK cascades, detection of biotic stimulus, defense response by callose deposition, regulation of systemic acquired resistance, innate immune response, hydrogen peroxide metabolism, and regulation of apoptotic process. The gene is linked to grain weight, plant height, anthesis time, leaf lamina length, root length, photosynthetic rate, leaf color, fructose, sucrose and carbohydrate content, stem rust and stripe rust, salt tolerance, cell death, male sterility and fertility, nectar secretion, filament elongation, somatic embryogenesis, virus resistance, drought tolerance, and defense responses to herbivory and necrotrophic fungi. The protein localizes to the chloroplast inner membrane, thylakoid, envelope, plastid, and mitochondria.