LEA — Oryza sativa Japonica

Summary

OS11G0453900 (RAB21, also known as LEA, OsDHN1, or OsRAB16C) on rice chromosome 11 encodes a dehydrin-family protein characterized by a dehydrin conserved sequence and annotated with lipid-binding activities, including phosphatidylglycerol, phosphatidylserine, phosphatidate, and phosphoinositide binding. In rice, this gene is associated with water stress response, abscisic acid anabolism, cold acclimation, immune response, embryogenesis, and root morphogenesis. It is linked to membrane breakdown, starch breakdown, actin depolymerization, and chlorophyll fluorescence. The protein localizes to the vesicle membrane, cytosol, and nucleus. Associations with agronomic traits include grain yield, spikelet sterility, pollen fertility, heat and cold tolerance, photosynthetic rate, stomatal resistance, germination rate, and soluble protein, amino acid, sugar, proline, anthocyanin, and chlorophyll content. Studies of related genes in other species connect the family to drought tolerance, seed maturation, and abiotic stress responses.