P5CS1 — Cicer arietinum

Summary

LOC101490622 (CaP5CS1) on chickpea chromosome 6 encodes a protein with glutamate 5-kinase activity, glutamylphosphate reductase activity, D1-pyrroline-5-carboxylate synthetase activity, and ATP binding. This gene is associated with L-proline biosynthesis and responses to desiccation, hyperosmotic salinity, oxidative stress, and abscisic acid. It is linked to root development, embryo development, and the transition from vegetative to reproductive phase. The protein localizes to the cytoplasm, mitochondria, Golgi complex, and plasmodesmata. CaP5CS1 is associated with salt tolerance, drought tolerance, freezing tolerance, arsenic tolerance, and photosynthetic rate. It is also linked to flowering time, plant height, pollen development and fertility, root elongation at low water potential, and reactive oxygen species accumulation. Studies of related genes in other species link the family to osmotic stress tolerance, drought resistance, heat tolerance, and pathogen resistance.