Figure 6.

Fe accumulation patterns in the roots of 6-d-old seedlings of the wild type (WT), various mutants and overexpressing lines, and the stop1 als3 and almt1 als3 double mutants grown on +Pi and −Pi media. Fe in roots grown on +Pi medium (A) or –Pi medium (B) was determined by Perls/DAB staining. The top and bottom rows in each section are photographs of the MZ and the root apex, respectively. Roots of representative seedlings are shown. Bars = 100 μm.