RLK — Medicago truncatula

Summary

MTR_7G062770 (MtRLK) encodes a transmembrane receptor protein serine/threonine kinase with lectin domains, belonging to the L-type lectin receptor kinase family. It exhibits coreceptor activity, histidine kinase activity, sugar binding, and protein homodimerization activity. The gene is associated with nitrogen fixation, lateral root development, somatic embryogenesis, organogenesis, pollen aperture formation, and ectodomain cleavage. It is linked to defense responses against oomycetes and fungi, upregulation of innate immune response, inhibition of salinity response, cell death, and response to salt and salicylate. Localization evidence places the product at the plasmalemma, endoplasmic reticulum, cytosol, extracellular region, and pollen aperture. Overexpression studies connect MtRLK to salt tolerance and pathogen resistance. Studies of related genes in other species link the family to seed germination, seed weight, seed size, chlorophyll content, root hair length, and proline content.