Figure 7.

Effect of PIP1b Overexpression on Plant Fresh Weight under Salt Stress.

Wild-type and transgenic PIP1b2 and PIP1b3 plants were irrigated for 40 days with either tap water (white columns) or tap water supplemented with 90 mM NaCl (gray columns), and total plant fresh weights were measured. Bars represent the standard errors of the means of at least five plants per genotype. Different letters above the columns indicate statistically significant differences at the 0.05 level. WT, wild type.