Analysis of salt tolerance in <i>DgNHX1</i>-overexpression transgenic tobacco plants (OE-6, OE-9, and OE-13).

<p>(A) The seedlings in WT and <i>DgNHX1</i>-OE transgenic T₂ lines were irrigated with 400 mM NaCl for 7 days to assess physical symptoms. (B) Survival rates of seedling in wild type and <i>DgNHX1</i>-OE transgenic T₂ lines after 6 days recovery. About 100 seedlings were used for each treatment. Different letters above columns indicate (P<0.05) significant differences according to Duncan's multiple range test between lines.