PSP — Phaseolus vulgaris

Summary

PvPSP (PHAVU_010G007300) on French bean chromosome 10 encodes a phosphoserine phosphatase with L-phosphoserine phosphatase activity and magnesium binding, belonging to the HAD-like SerB family. The gene is associated with L-serine metabolism, L-serine anabolism, sulfur amino acid metabolism, fruit development, root development, embryo development ending in seed dormancy, immune response, and NO storage. Its product localizes to the plastid. PvPSP is associated with tapetum development, pollen development, male fertility, photorespiration, root growth, and plant growth. Studies of related genes in other species link the family to nitrogen content, chlorophyll content, root thickness, photochemical quenching, pollen fertility restoration trait, plant embryo development trait, and cadmium tolerance.