FBP — Beta vulgaris subsp. vulgaris

Summary

BvFBP (BVRB_5G111330) on sugar beet chromosome 5 encodes a class-1 fructose-1,6-bisphosphatase with fructose 1,6-bisphosphate 1-phosphatase activity and protein kinase activity. It is associated with the reductive pentose-phosphate cycle, gluconeogenesis, sucrose and fructose metabolism, photosynthetic electron transport in photosystem I, nitrogen utilization, glutamate metabolism, flavonoid anabolism, and fermentation. The protein localizes to the chloroplast stroma, stromule, cytosol, apoplast, and plasmalemma. This gene is associated with photosynthetic rate, root thickness, manganese sensitivity, osmotic response sensitivity, abscisic acid sensitivity, disease tolerance, and salt tolerance. Associated phenotypes include altered soluble sugar content, starch accumulation, cyclic electron flow, root vascular layer number, stomatal development, and plant growth. Studies of related genes in other species link the family to abscisic acid signaling and root growth.