RLK — Beta vulgaris subsp. vulgaris

Summary

BvRLK (BVRB_7G173370) on sugar beet chromosome 7 encodes a transmembrane receptor serine/threonine kinase with lectin domains, belonging to the L-type lectin receptor kinase family. The protein exhibits histidine kinase activity, coreceptor activity, sugar binding, and protein homodimerization activity. BvRLK is associated with diverse biological processes including immune and defence responses against oomycetes and fungi, ethylene and cytokinin signalling, salinity response, pollen development and aperture formation, somatic embryogenesis, abscission, and regulation of developmental growth. It localises to the plasma membrane, endoplasmic reticulum, cytosol, nucleus, and extracellular regions. The gene is linked to ethylene sensitivity, defence against herbivory, and methyl jasmonate-mediated stomatal closure. Related genes in other species are linked to stomatal immunity, resistance to Pseudomonas syringae, and Fusarium crown and root rot resistance.