RHD2 — Solanum lycopersicum

Summary

SOLYC08G081690.3, also known as RHD2 or RBOH1, encodes a respiratory burst oxidase homolog (RBOH) protein on tomato chromosome 8. The product contains NADPH oxidase, FAD-binding, and EF-hand calcium-binding domains and is annotated with NAD(P)H oxidase H2O2-forming activity, calcium ion binding, and protein kinase activities. In tomato, RBOH1 is associated with cold, heat, and oxidative stress tolerance, tobacco mosaic virus resistance, and pesticide metabolism. The gene is linked to reactive oxygen species homeostasis, hydrogen peroxide metabolism, immune response signaling, and the ascorbate-glutathione cycle. Associations include root hair development and elongation, stomatal sensitivity to brassinosteroids, chilling tolerance, cadmium tolerance, photosynthetic induction, and grain yield. It is also connected to traits such as stay green, canopy temperature, bacterial blight resistance, biomass yield, and heterosis. Related genes in other species are linked to salt stress, drought tolerance, pathogen defense, and tuber dormancy release.