P5CS1 — Brassica oleracea var. botrytis

Summary

BoP5CS1 (BOLND125_C04P073250.1) on cauliflower chromosome 4 encodes a protein with glutamate 5-kinase and glutamylphosphate reductase activities, possessing D1-pyrroline-5-carboxylate synthetase activity and ATP binding. This gene is associated with L-proline biosynthesis and transport, and is linked to responses to desiccation, hyperosmotic salinity, oxidative stress, and abscisic acid. It is associated with proline content, photosynthetic rate, pollen fertility, and salt tolerance. Associations include drought tolerance, freezing tolerance, arsenic tolerance, flowering time, root meristem size, inflorescence architecture, and climate adaptation. The encoded protein localises to the cytoplasm, mitochondria, and Golgi complex. Studies of related genes in other species link the family to osmotic stress tolerance, drought resistance, root elongation, heat tolerance, and abiotic stress tolerance.