CHLN — Medicago truncatula

Summary

MTR_1G084050 (symbol CHLN, also known as MtNAS1) encodes a nicotianamine synthase, an enzyme with nicotianamine synthase activity that belongs to the nicotianamine synthase family and the SAM-dependent methyltransferase superfamily. In barrel medic, this gene is associated with nicotianamine anabolism, response to zinc, nitrogen fixation, phloem transport, pollen tube growth, homeostasis, and pollen development, and its product localises to the nucleus. The gene has been linked to cadmium tolerance, iron translocation, chlorosis, iron deficiency tolerance, and rRNA gene expression. Studies of related genes in other species connect the family to iron homeostasis, cadmium detoxification, and iron transport, while tobacco studies link it to chlorotic leaves, altered metal content, and increased iron uptake.