IOS1 — Phaseolus vulgaris

Summary

PvIOS1 (PHAVU_005G162400) on chromosome 5 of French bean encodes a protein with malectin-like and leucine-rich repeat domains and serine/threonine/tyrosine kinase activity. It is associated with pectin binding, ammonium channel activity, and red/far-red light photoreceptor activity. The gene is linked to downregulation of defense response to oomycetes, regulation of defense response by callose deposition, lateral root branching, response to flooding, endosperm development, and abscisic acid metabolism. It localizes to the membrane, plasmodesma, pollen tube, and nuclear body. PvIOS1 is associated with yield, biomass, photosynthetic rate, water use efficiency, leaf angle, photoperiod-sensitive flowering, salt tolerance, bacterial and downy mildew resistance, and ammonium uptake. Related genes in other species are linked to pattern-triggered immunity, callose deposition, and abscisic acid signaling.