APX — Medicago truncatula

Summary

MTR_5G008440 (MtAPX) encodes a haem peroxidase with L-ascorbate peroxidase activity, also annotated with p-coumarate 3-hydroxylase activity, siRNA and miRNA binding, RNA endonuclease activity, and protein kinase activity. It is associated with cellular response to oxidative stress, hydrogen peroxide catabolism, detoxification, auxin and galactose metabolism, gene silencing by miRNA, cell cycle G2/M phase transition, stomatal complex development, and leaf patterning. The gene is linked to numerous agronomic traits including drought tolerance, submergence tolerance, bacterial blight disease resistance, viral disease response, aphid response, seed viability, photosynthetic rate, flowering time, leaf senescence, root and shoot morphology, and jasmonic acid content. It localises to peroxisome membrane, chloroplast thylakoid membrane, stress granules, plasmodesmata, and the cell wall. Related genes in other species are associated with heat, salt, high-light, and oxidative stress tolerance, photoprotection, root development, and pathogen defence.