FIGURE 1.

Ablation of AtMRP5 disturbs inositol hexakisphosphate, phosphate, and phosphorus levels in seeds. The conductivity profiles of seed extracts is shown. A, traces for Col0 (red line), mrp5-2 (black line), and ipk1-1 (blue line). B, traces for Ws-2 (red line) and mrp5-1 (black line). Individual traces are offset on the y axis to aid visualization. C, seed InsP₆. D, inorganic phosphate (Pi). E, total phosphorus (P) content of two independent AtMRP5 mutants and their corresponding wild types. The data represent the means and standard deviations of four to eight independent measurements.