SWEET11 — Arabidopsis thaliana

Summary

AT3G48740, designated SWEET11 in Arabidopsis thaliana, encodes a SWEET family protein with fructose uniporter, D-glucose transmembrane transporter, and gibberellin transmembrane transporter activities. This gene is associated with phloem loading, seed filling, and carbon export to roots. It is linked to carbohydrate export, phloem unloading, seed growth, and TOR signaling, as well as fructose export from vacuole to cytoplasm and amino acid efflux. The protein localizes to the tonoplast, ER membrane, plasmalemma, and trans-Golgi network membrane. SWEET11 is associated with traits including seed weight, starch mobilization, sugar content, root length, and disease tolerance. Studies of related genes in other species connect the family to sucrose export and late blight susceptibility.