Drought tolerance analysis of <i>35S:AtVIP1</i> transgenic plants.

<p><b>(A)</b> Growth of WT and <i>35S:AtVIP1</i> transgenic lines containing OE-VIP1–5 and -7 under normal conditions (MS0) and drought stress (MS0 plus 4% PEG). <b>(B)</b> Primary root lengths (cm) were measured at 14 days after PEG treatment. Values are means ± SD (n = 30) from three independent experiments and asterisks indicate significant differences (Student’s t test,*P<0.05 or **P<0.01) between WT and <i>35S::AtVIP1</i> transgenic plants. <b>(C)</b> Drought tolerance assay of the WT and <i>35S::AtVIP1</i> transgenic lines in soil. WT plants and <i>35S:AtVIP1</i> transgenic lines (21 days old, before drought treatment) were withheld from watering for 21 days and then re-watered for 3 days. Values under the figures are survival rates. Three independent experiments were conducted.