Figure 3. Effect of NaCl stress on δ-OAT activities of Jerusalem artichoke in roots (A), stems (B) and leaves (C).

30-day-old Jerusalem artichoke plantlets were treated with 0 or 100 mM NaCl (see Materials and Methods) for 12, 24, 48 and 72 h. All treatments had three biological replicates. OAT activities were measured by ninhydrin method (see Materials and Methods). Values represent means ± SE of three independent experiments. Significant differences (P≤0.05) between treatments are indicated by different letters.