AO (TRAESCS2B02G270600) — triticum aestivum

Summary

TRAESCS2B02G270600 (TaAO) on wheat chromosome 2B encodes an aldehyde oxidase with abscisic aldehyde oxidase, aryl-aldehyde oxidase, xanthine dehydrogenase and indole-3-acetaldehyde oxidase activities, binding molybdenum cofactor, FAD and 2Fe-2S clusters. The gene is associated with abscisic acid and auxin anabolism, carotenoid breakdown, leaf senescence, chloroplast organization, and cellular response to aldehyde. It has been linked to cold stress tolerance and Fusarium graminearum resistance in wheat. Associations also include carotenoid and chlorophyll content, sugar content, transpiration rate, water use efficiency, photosynthetic rate, stomatal resistance, seed germination and dormancy, salt and drought stress responses, and phytohormone biosynthesis. The protein localizes to plastid, cytosol, cytoplasm and nucleus. Studies of related genes in other species connect the family to ABA biosynthesis, stomatal movement, drought tolerance, and pathogen resistance.