Figure 4
From: AtOPR3 specifically inhibits primary root growth in Arabidopsis under phosphate deficiency

The role of ethylene signaling in mediating primary root growth in Atopr3 and WT plants.
Seedlings were grown as described in Fig. 3. (a) Effects of 5 μM AgNO3 (-P + AgNO3) or 1.25 μM AVG (-P + AVG) on primary root growth. Results were presented as means (n = 30) with error bars (standard deviation). Asterisks indicated significant differences as determined by a t-test analysis (**P < 0.01). (b) Relative expression levels of critical genes mediating ethylene biosynthesis or signaling (determined by RT-qPCR) in WT and Atopr3 mutant plants. Data represented means and SD of three independent biological replicates. Different letters indicated means with significant differences (P < 0.05).