SUT1 — Phaseolus vulgaris

Summary

PHAVU_007G088200, designated PvSUT1 on French bean chromosome 7, encodes a protein belonging to the sucrose symporter plant family and the major facilitator superfamily. The gene product exhibits transmembrane transporter activity for arbutin, salicin, maltose and sucrose. PvSUT1 is associated with phloem loading, sucrose and maltose transport, sucrose metabolism, and pollen germination. The protein localises to the plasma membrane, tonoplast, vacuole, and cis-Golgi network. In this species, PvSUT1 is linked to photosynthetic rate. Studies of related genes in other species connect the family to traits including seed weight, plant height, stem diameter, leaf relative water content, and levels of sucrose, starch, protein, chlorophyll, hydrogen peroxide, and abscisic acid.