Figure 7.

Phenotype comparison of wild-type and oshma9 plants grown under elevated levels of heavy-metal ions. Wild-type, oshma9-1 (A–E), and oshma9-2 (F–J) plants were grown for 12 d on solid agar containing one-half-strength Murashige and Skoog medium (A and F), medium supplemented with 5 mm ZnCl₂ (B and G), 3 mm lead tartrate (C and H), 500 μm CdCl₂ (D and I), or 300 μm CuCl₂ (E and J). For each, two plants at left are wild-type control and two plants at right are oshma9 grown under the same conditions. Bars = 5 cm.