ACO — Pisum sativum

Summary

PSAT1G177520 (symbol ACO, also known as PsACO1, PsEAT1, and EFE) on garden pea chromosome 1LG6 encodes an ACC oxidase (EC 1.14.17.4) with ACC oxidase and 2-oxoglutarate dioxygenase activities, binding vitamin C and metal ions. The gene is associated with ethylene biosynthesis from methionine and with ethylene production and sensitivity. It has been linked to fruit ripening, seed development and germination, geotropism, nodulation, nitrogen fixation, defense response, response to fungi, and cellular response to fatty acid. Associations also include coumarin anabolism, cell growth, respiration rate, flower color, seed coat color, proline content, and the SALTTL trait. The encoded protein localizes to the cytosol, cytoplasm, extracellular region, and stress granules. Studies of related genes in other species connect the ACO family to seed weight, seed size, germination rate, root length, drought tolerance, and disease tolerance.