Fig. 2 in Vitamin E in legume nodules: Occurrence and antioxidant function

Fig. 2. Water deficit stress effects on the relative water content of leaves, roots and nodules and 15N isotope labeling in nodules of soybean, alfalfa and pea plants. (A) Relative water content (RWC) of leaves, roots and nodules of soybean, alfalfa and pea plants (from top to bottom). Data correspond to the mean ± SE of n = 5 individuals. Results of statistics are shown (two-way ANOVA, P <0.05). (B) 15N isotope labeling (δ15N) in nodules of irrigated and water-stressed plants in soybean, alfalfa and pea. Data correspond to the mean ± SE of n = 4. Results of statistics are shown (two-way ANOVA, P <0.05). An asterisk indicates significant differences between water-stressed and irrigated plants. Letters indicate significant differences over time in water-stressed plants (Tukey posthoc test P <0.05). NS, not significant. DAW, days after water withdrawal in water-stressed plants.