Fig. 2
From: Metabolic alterations provide insights into Stylosanthes roots responding to phosphorus deficiency
Expression analysis of genes encoding expansin proteins at two P levels. Stylo seedlings were exposed to +Pi (250 μmol/L KH2PO4) and -Pi (0 μmol/L KH2PO4) treatments for 15 d. The roots were harvested for qRT-PCR analysis. Each bar represents the mean of four replicates with SE (n = 4). Asterisks indicate significant differences between +Pi and -Pi treatments in the Student’s t-test (*: P < 0.05, **: 0.001 < P < 0.01, ***: P < 0.001), ns indicates no significant difference