RLK — Oryza sativa Japonica

Summary

OS07G0575700 (RLK, also known as SIT3) encodes a transmembrane receptor serine/threonine kinase with a legume lectin domain, possessing histidine kinase activity, coreceptor activity, sugar binding, and protein homodimerization activity. In rice, this gene is associated with strigolactone and gibberellin biosynthesis, auxin transport, carbohydrate transport, root system development, pollen aperture formation, cell fate specification, sexual reproduction, and regulation of developmental growth. It has been linked to grain yield, plant height, stem elongation, glume opening, drought tolerance and sensitivity, salt tolerance and sensitivity, stomatal resistance, and ethylene homeostasis. The protein localizes to the plasmalemma, extracellular region, endoplasmic reticulum, mitochondria, nucleus, cytosol, and pollen aperture. Studies of related genes in other species link the family to reactive oxygen species, stomatal immunity, and resistance to Pseudomonas syringae.