RHD2 — Medicago truncatula

Summary

MTR_3G098320 (RHD2) in barrel medic (Medicago truncatula) encodes a respiratory burst oxidase homolog protein, a NADPH oxidase with NAD(P)H oxidase H2O2-forming and peroxidase activities, and contains EF-hand calcium-binding domains. The gene is associated with root hair elongation, initiation, tip growth, and formation, as well as primary root growth, lateral root induction, and phosphorus acquisition. It is linked to nitrogen fixation, nodulation, cell death, innate immunity, metabolic burst, and response to ATP. Localization evidence connects RHD2 to the plasmalemma, nucleus, mitochondria, plant-type vacuole, and cytosolic ribosome. Studies of related genes in other species link the family to reactive oxygen species homeostasis, potassium deficiency response, salt stress response, cell division, and defense response.