PFN1 — Beta vulgaris subsp. vulgaris

Summary

BvPFN1 (BVRB_8G197700) encodes a profilin, a member of the profilin family characterized by a profilin domain and conserved sequence. The protein binds G-actin and F-actin, exhibits phosphatidylinositol kinase activity, and is involved in phosphatidylinositol phosphate biosynthesis. In sugar beet, BvPFN1 is associated with defense response by cell wall thickening, actin polymerization or depolymerization, meiosis, mitosis, regulation of unidimensional cell growth, lateral root development, response to salt, inflorescence development, seed germination, seedling development, and leaf development. It localizes to the haustorium, cell cortex, spindle, stress granule, plant-type cell wall, nucleolus, plastid, and plasmodesma. The gene is also linked to traits including arsenic concentration, abscisic acid sensitivity, disease tolerance, plant growth and development, and salt tolerance. Studies of related genes in other species connect the profilin family to salt tolerance, drought tolerance, heat stress tolerance, fungal resistance, and immune response.