PHO2 — Phaseolus vulgaris

Summary

PvPHO2 (PHAVU_002G233800) on chromosome 2 of French bean encodes a ubiquitin-conjugating enzyme (UBC) with ubiquitin-protein transferase activity, also annotated for phosphate transmembrane transporter activity and inositol hexakisphosphate binding. The gene is associated with phosphate homeostasis, intracellular phosphate ion homeostasis, regulation of phosphate membrane transport, cellular response to phosphate starvation, protein polyubiquitination, and ubiquitin-dependent proteolysis. It localizes to the nucleus, plasma membrane, endoplasmic reticulum, Golgi, trans-Golgi network, and mitochondria. PvPHO2 is associated with shoot system phosphorus content, phosphate content, shoot growth angle, phosphorus uptake, low temperature stress response, abscisic acid sensitivity, plant growth and development trait, phosphate translocation, stomatal response to ABA, shoot growth, phosphate accumulation, phosphate transport, phosphate homeostasis, shoot phosphate content, phosphate acquisition, frost tolerance, freezing tolerance, phosphate uptake, fungal pathogen resistance, phosphate efflux, phosphate starvation response, severe phosphorus deficiency, dark green leaves, purple petioles, inorganic phosphate homeostasis, plant growth, inorganic phosphate uptake, leaf senescence, root allometry, phosphate export, root-associated acid phosphatase activity, salt stress response, phosphate content in shoots, phosphorus utilization, flowering time, and phosphate response. Related genes in other species link the family to phosphate loading to xylem and arsenic accumulation.