Fig. 2.
Effect of Cd (0.1–1000 μM) on growth (μm cm−1) of maize coleoptile segments incubated in the presence of 1 μM FC. The elongation of a stack of 21 segments was measured as described in Materials and Methods. The growth of maize coleoptile segments after 7 h is shown (2 h of preincubation in control medium plus 5 h of incubation with Cd combined with FC). The inset shows Cd dependence of growth in the presence of FC as a function of time. After preincubation (2 h) of coleoptile segments in the control medium, Cd combined with FC (1 μM) was added (arrow). Values are means of ten independent experiments. Bars indicate means ± SEs. Means followed by the same letter are not significantly different from each other (LSD test P < 0.05)