Fig. 4From: Physiological and iTRAQ-based proteomic analyses reveal the function of exogenous γ-aminobutyric acid (GABA) in improving tea plant (Camellia sinensis L.) tolerance at cold temperatureCharts of the DAPs for (a) the main functional categories and (b) the distribution of proteins according to their cellular localization in tea plant leaves under treatments T2/T1 (25 °C and 25 °C + GABA for T1 and T2, respectively); (c) the main functional categories and (d) the distribution of proteins according to their cellular localization in tea plant leaves under treatments T4/T1 (25 °C and 4 °C + GABA for T1 and T4, respectively); (e) the main functional categories and (f) the distribution of proteins according to their cellular localization in tea plant leaves under treatments T4/T3 (4 °C and 4 °C + GABA for T3 and T4, respectively). The tea leaf proteins identified were classified according to their known or predicted cellular localization using Blast2Go (http://www.blast2go.com) programBack to article page