Fig. 9.
Expression of five Pi starvation-responsive genes in GmPHR25-overexpressing composite soybean plants. Plants were grown in nutrient solution containing 500 μM KH2PO4 for 14 d, and transcripts of candidate genes in hairy roots were determined by qPCR. Control represents soybean hairy roots transformed with the empty vector; OE indicates transgenic soybean hairy roots overexpressing GmPHR25. Data are means of six replicates ±SE. *, Significant differences in gene expression between OE and control plants (Student’s t-test, P<0.05).