Glutamate promotes cold tolerance through CsGLR3.2- and Ca2+-associated CBF signaling in tea plants
Abstract Low temperature limits the productivity and quality of tea plants, particularly when spring cold spells damage vulnerable young shoots. However, the metabolic signals that regulate C-repeat binding factor (CBF)-mediated cold responses remain unclear. Time-series metabolomic analysis revealed progressive glutamate accumulation in cold-treated tea shoots, accompanied by a marked decline…