AOS — Arabidopsis thaliana

Summary

AT5G42650 (AOS, also known as DDE2 or CYP74A) in Arabidopsis thaliana encodes allene oxide synthase, a cytochrome P450 enzyme with allene oxide synthase and hydro-lyase activities, localised to the chloroplast thylakoid membrane and plastid. The gene is associated with oxylipin metabolism, and has been linked to herbivore-induced volatile emission, parasitoid attraction, and Verticillium longisporum susceptibility. It is associated with male sterility, anther dehiscence, petal and sepal senescence, nectar secretion, and wound response. Associations also include cesium tolerance, cadmium tolerance, salt tolerance, waterlogging tolerance, sorbitol stress response, and high temperature stress response, as well as traits like potassium content, proline content, carotenoid content, chlorophyll content, photosynthetic rate, stomatal regulation, and leaf growth. Studies of related genes in other species connect the family to grain size, starch yield, and cold tolerance.