RHD2 — Cucumis melo

Summary

MELO3C025713.2, designated CmRHD2 on melon chromosome 12, encodes a protein containing NADPH oxidase, FAD-binding, ferric reductase, and EF-hand calcium-binding domains, with NAD(P)H oxidase H2O2-forming activity and calcium ion binding. This gene is associated with immune response-regulating signaling pathways, defense response by callose deposition, respiratory burst involved in defense response, and H2O2 biosynthetic process. It is linked to root hair elongation, root hair development and tip growth, lateral root induction, root growth, phosphorus acquisition, and cell wall strength. Associations also include grain yield, seed yield, biomass yield, bacterial blight disease resistance, water use efficiency, leaf rolling response, osmotic response sensitivity, brassinosteroid sensitivity, ethylene sensitivity, and stomatal complex closure time. Studies of related genes in other species link the family to salt, cold, heat, and oxidative stress tolerance, as well as late blight resistance and photosynthetic induction.