TMM — Arabidopsis thaliana

Summary

AT1G80080 (TMM, TOO MANY MOUTHS) encodes a leucine-rich repeat receptor-like protein belonging to the At_inactive_RLKs family, with transmembrane receptor protein kinase activity and peptide binding functions. TMM is associated with stomatal development and patterning, including negative regulation of stomatal complex development, guard cell morphogenesis, and stomatal density. It is linked to plant epidermis morphogenesis, cell fate determination, and regulation of cell differentiation. The gene has been connected to numerous agronomic traits including water-use efficiency, transpiration efficiency, carbon isotope discrimination, seed yield, plant size, leaf morphology traits, and stress responses including salt tolerance and heat sensitivity. TMM also shows associations with inflorescence architecture, petal and anther morphology, and male sterility. Related genes in other species are linked to drought tolerance, plant height, disease resistance, and stomatal density.