Figure 1.

Main biometrics of two-week-old wild-type (WT) seedlings grown either in a standard MS (high P, HP) or in Pi-deprived conditions (low P, LP), with (+ GR24) or without (− GR24) 5 µM rac-GR24: (A) primary root length; (B) number of lateral roots; (C) root fresh biomass; (D) shoot fresh biomass. Each column represents the average of three (C,D) to six seedlings (A,B) with standard error. Statistical significance of differences between means is indicated by different letters above bars (p ≤ 0.05).