Roponse to salt stress of MaPIP1;1 -overexpressing Arabidopsis plants. Photographs (A) and statistical analyses (D) of the primary root length of WT and transgenic lines under normal or saline conditions. Photographs (B) and survival rates (C) of WT and transgenic mature plants grown under saline conditions. (E) The number of root hairs of WT and transgenic lines under normal or saline conditions. Data are means ± SE of n = 4 biological replicates. Means denoted by the same letter do not significantly differ at P < 0.05 as determined by Duncan’s multiple range test.