FSD3 — Medicago truncatula

Summary

MTR_3G078860 (FSD3, MtFSD3) on barrel medic chromosome 3 encodes a manganese/iron superoxide dismutase, a metal-binding enzyme. The gene is associated with nitrogen fixation, primary and secondary metabolism, the TCA cycle, calcium signaling, and autotrophy. It is linked to responses to copper, iron, herbicides, xenobiotic stimuli, and reactive oxygen species, as well as phytochelatin, melatonin, and flavonoid anabolism. Associations with traits include shoot dry weight, leaf chlorophyll content, amino acid content, auxin content, stomatal resistance, leaf size, drought tolerance, and salt tolerance. The encoded protein localises to plastid nucleoids, thylakoids, mitochondria, and mitochondrial lumen. Related genes in other species link the family to iron deficiency tolerance, salt stress response, superoxide detoxification, and developmental senescence.