RLK — Beta vulgaris subsp. vulgaris

Summary

BvRLK (BVRB_5G111480) on sugar beet chromosome 5 encodes a transmembrane receptor serine/threonine kinase with lectin domains, belonging to the L-type lectin receptor kinase family. The protein exhibits kinase, histidine kinase, sugar-binding, and coreceptor activities, and is localized to the plasma membrane, ER, cytosol, nucleus, and pollen aperture. BvRLK is associated with diverse biological processes including immune and defence responses against fungi and oomycetes, ethylene and cytokinin signalling, salinity response, somatic embryogenesis, pollen development and aperture formation, abscission, and regulation of growth and cell differentiation. It is linked to ethylene sensitivity, defence against herbivory, and methyl jasmonate-mediated stomatal closure. Related genes in other species are associated with stomatal immunity and resistance to Pseudomonas syringae, and with Fusarium crown and root rot resistance.