APX — Medicago truncatula

Summary

MTR_4G061140 (MtAPX) encodes a haem peroxidase family protein with L-ascorbate peroxidase activity, also annotated for p-coumarate 3-hydroxylase, siRNA binding, and protein kinase activities. The gene is associated with cellular response to oxidative stress, hydrogen peroxide catabolism, detoxification, and cell cycle G2/M phase transition. It localises to the peroxisome membrane, chloroplast thylakoid membrane, and stress granules. MtAPX is linked to drought tolerance, salt tolerance, submergence tolerance, bacterial blight disease resistance, viral disease response, aphid response, photosynthetic rate, respiration rate, seed viability, flowering time, leaf senescence, stomatal complex closure time, adventitious root development, and plant morphology traits. Related genes in other species are associated with heat, salt, and high-light stress tolerance, root development, and post-transcriptional gene silencing.