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. 2012 Sep 28;24(9):3823–3837. doi: 10.1105/tpc.112.103374

Figure 5.

Figure 5.

V. longisporum Strain VL43–Mediated Increase in Water Content Depends on de Novo Xylem Development and Enhances Arabidopsis Col-0 Drought Tolerance.

(A) The figure represents the combined data of three independent experiments which each included wild-type (WT) Col-0 controls and the three transgenic lines L17.7, L18.9, and L22.9. The box plot displays the median of the data set (central bar), the range between the first and third quartile (box), and the highest and lowest values still within the 1.5 interquartile range of the higher and lower quartile, respectively (whiskers). Values outside of this range are depicted as circles. c, noninfected control; i, infected.

(B) Phenotypes of noninfected and infected Col-0 plants at 21 DAI under normal and restricted water supply. Three representative plants are shown for each condition.

(C) Noninfected and infected plants of wild-type Col-0 and three independent transgenic PER21pro:VND7-SRDX lines were exposed to drought stress (watering stopped at 7 DAI). The fresh weight of plants was determined at 21 DAI. The fresh weights of noninfected control plants were set to 100%, and fresh weights of infected plants were calculated in percentages relative to controls. Data represent means ± sd (n = 9, the experiment was repeated three times; representative data are shown). Significant differences between wild-type Col-0 and transgenic PER21pro:VND7-SRDX lines at P ≤ 0.05 and P ≤ 0.01 are indicated by * and **. dpi, days postinoculation.

(D) The noninfected and infected plants of wild-type Col-0 and three independent transgenic PER21pro:VND7-SRDX lines were exposed to drought stress (watering stopped at 7 DAI). The water content of plants was determined gravimetrically at 21 DAI. The water content of noninfected control plants was set to 100%, and the water content of infected plants was calculated as a percentage of the control. Data represent means ± sd (n = 9, the experiment was repeated four times with lines L18.9 and L22.9 and three times with line L17.7; representative data are shown). Significant differences between wild-type Col-0 and transgenic PER21pro:VND7-SRDX lines at P ≤ 0.01 are indicated by **.