RBOHB — Phaseolus vulgaris

Summary

PHAVU_006G090200, symbol RBOHB, encodes a respiratory burst oxidase homolog protein on French bean chromosome 6. The product contains NADPH oxidase, ferric reductase, FAD-binding, and EF-hand calcium-binding domains, and is annotated with NAD(P)H oxidase H2O2-forming activity, peroxidase activity, and calcium ion binding. It localizes to the plasmalemma. The gene is associated with metabolic burst, organogenesis, nitrogen fixation, nodulation, cell cycle modulation, cell growth and division, root and lateral root development, defense response, and response to heat. It is also linked to photosynthetic rate, root length, and nematode resistance. Studies of related genes in other species connect the RBOH family to drought tolerance, submergence tolerance, seed after-ripening and germination, thermotolerance, and resistance to leaf-infecting pathogens.