RHD2 — Cucumis sativus

Summary

CsRHD2 (CSA_1G013250) on cucumber chromosome 1 encodes a superoxide-generating NAD(P)H oxidase, a respiratory burst oxidase homolog with NADPH_Ox, FAD-binding, and EF-hand calcium-binding domains. The gene is associated with immune response-regulating signaling, respiratory burst involved in defense response, defense response by callose deposition, and H2O2 biosynthetic process. It is linked to root hair elongation, root hair development and tip growth, lateral root induction, root growth, and root epidermal cell differentiation. Associations also include grain yield, seed yield, biomass yield, bacterial blight disease resistance, aphid response, water use efficiency, transpiration rate, leaf rolling response, phototropism, aluminum response, phosphorus uptake, osmotic response sensitivity, brassinosteroid sensitivity, and ethylene sensitivity. 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.