RLK — Nicotiana attenuata

Summary

A4A49_35669 (NaRLK) on coyote tobacco chromosome 7 encodes a transmembrane receptor serine/threonine kinase with lectin domains, classified as an L-type lectin receptor kinase. It exhibits histidine kinase activity, coreceptor activity, sugar binding, protein homodimerization activity, and protein kinase activity. NaRLK is associated with defense responses against herbivory, oomycetes, and other organisms, as well as systemic acquired resistance, immune response, hypersensitivity, and virus-induced PTGS. It is linked to cellular responses to ethylene and cytokinin signaling, histidyl-aspartyl phosphorelay, pollen development and aperture formation, and regulation of developmental growth. The gene is associated with shoot dry weight, drought tolerance, ethylene sensitivity, and methyl jasmonate-mediated stomatal closure. Studies of related genes in other species link the family to stomatal immunity, resistance to Pseudomonas syringae, Fusarium crown and root rot resistance, and insect egg-induced cell death.