SUC1 — Phaseolus vulgaris

Summary

PHAVU_004G082200 (PvSUC1) on chromosome 4 of French bean encodes a sucrose:proton symporter belonging to the sucrose symporter plant family and the major facilitator superfamily. The gene is associated with phloem sucrose loading, glucoside and maltose transport, proton transmembrane transport, and sucrose metabolism. It has been linked to grain yield, grain size, unfilled grain number, sucrose content, pollen fertility, photosynthetic rate, drought tolerance, salt tolerance, stomatal resistance, oxidative stress response, plant growth and development, root morphology, and seed development traits. Additional associations include cell cycle regulation, auxin sensitivity, jasmonic acid content, and responses to nematodes. The protein localizes to the tonoplast, plasmodesma, Golgi complex, pollen tube, and stress granules. Related genes in other species are linked to phloem loading, carbon partitioning, anther dehiscence, pollen tube growth, and female gametophyte development.