RHD2 — Cucumis melo

Summary

MELO3C025712.2 (CmRHD2) on melon chromosome 12 encodes a respiratory burst oxidase homolog (RBOH) with NAD(P)H oxidase H2O2-forming activity, calcium ion binding, and multiple protein kinase activities, including transmembrane receptor protein tyrosine kinase and calcium-dependent protein serine/threonine kinase activity. The gene is associated with immune response-regulating signaling pathways, defense response by callose deposition, respiratory burst involved in defense response, H2O2 biosynthetic process, and detection of bacteria. It is linked to root hair elongation, root hair development and tip growth, lateral root induction, root growth, and phosphorus acquisition. Associations also include grain yield, seed yield, biomass yield, bacterial blight disease resistance, aphid response, water use efficiency, leaf rolling response, and responses to osmotic stress, aluminum, magnesium, and brassinosteroids. Studies of related genes in other species link the family to salt, heat, cold, and oxidative stress tolerance, as well as late blight resistance.