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. 2020 May 11;9(5):610. doi: 10.3390/plants9050610

Figure 6.

Figure 6

Aerenchyma formation under aerated conditions with or without N-1-naphthylphthalamic acid (NPA) or 1-aminocyclopropane-1-carboxylic acid (ACC) treatments. (a) Cross-sections at 30 mm from the tips of adventitious roots of the wild type (WT). Aerenchyma is indicated by magenta arrowheads. Bars = 100 μm. (b) Percentages of aerenchyma in root cross-sectional area at 10, 20, 30, 40, and 50 mm. Twenty-day-old aerobically grown WT seedlings were further grown under aerated conditions without NPA and ACC, with 0.5 µM NPA and without ACC or with 0.5 µM NPA and 10 µM ACC for 48 h. Different lowercase letters denote significant differences among the conditions (p < 0.05, one-way ANOVA followed by Tukey’s test for multiple comparisons). Boxplots show the median (horizontal lines), 25th to 75th percentiles (edges of the boxes), minimum to maximum (edges of the whiskers), and mean values (dots in the boxes) (n = 4–6).