RHD2 — Cucumis melo

Summary

MELO3C020689.2 (CmRHD2) on melon chromosome 13 encodes a respiratory burst oxidase homolog (RBOH) with NAD(P)H oxidase H2O2-forming activity, calcium ion binding, and multiple kinase and receptor-binding activities. It is associated with immune response-regulating signaling, defense response by callose deposition, respiratory burst involved in defense response, H2O2 biosynthetic process, and detection of bacteria. The gene is linked to root hair elongation, root hair development, root growth, lateral root induction, auxin distribution, phosphorus acquisition, and cell wall strength. Associations also include grain yield, seed yield, biomass yield, water use efficiency, bacterial blight disease resistance, aphid response, leaf rolling, lignin content, brassinosteroid sensitivity, ethylene sensitivity, osmotic response sensitivity, and stomatal closure time. Studies of related RBOH family members in other species link the family to salt, cold, heat, and oxidative stress tolerance, as well as lateral root formation and photosynthetic induction.