PFN1 — Cucumis sativus

Summary

CsPFN1 (CSA_2G000770) on cucumber chromosome 2 encodes a profilin, a member of the profilin family (PFN_sf, PFN, Profilin_CS) that binds G-actin, F-actin, proline-rich regions, and proteins, and is associated with phosphatidylinositol kinase activity. In cucumber, CsPFN1 is associated with defense response via cell wall thickening, actin polymerization or depolymerization, sex determination, regulation of organ growth, flower morphogenesis, lateral root development, inflorescence development, seed germination, and seedling development. It localizes to the haustorium, cell cortex, spindle, stress granule, plant-type cell wall, nucleolus, plastid, and plasmodesma. The gene is 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 heat stress tolerance, immune response, Phytophthora resistance, and drought tolerance.