Figure 2.

Expression of iron-regulated protein 2, irt2 (A), zinc-induced protein 4, zip4 (B), phytochelatin synthase 1, pcs1 (C), ATP-binding cassette type c 2, abcc2 (D), cation exchanger 4, cax4 (E), and heavy metal ATPase 4, hma4 (F) genes in the roots of soil-grown NaCl-untreated (−NaCl) and salt-stressed (+NaCl) Mesembryanthemum crystallinum plants subjected to concentrations of 0.01, 0.1, 1, 10 mM Cd and control (0.0 mM). Different letters above the bars indicate statistically significant differences at p ≤ 0.05 by Duncan’s post hoc test (N = 4, mean value ± SD).