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. 2018 Aug 30;21(Suppl Suppl 1):103–108. doi: 10.1111/plb.12873

Figure 2.

Figure 2

Ethylene inhibits HRE2‐induced AR elongation. A: AR density was analysed in 11‐day‐old wild type, erfVII, hre2‐1,HRE2ox1 and HRE2ox5 seedlings that were exposed to normoxic or hypoxic (2% O2) conditions for 6 days. Capital and lowercase letters indicate significant genotype‐specific differences with a given treatment. Asterisks indicate differences between treatments (one‐way anova with Tukey′s test or two‐sample t‐test, n = 18–31, P < 0.05). B: Number of elongated AR in 11‐day‐old wild type, erfVII, hre2‐1,HRE2ox1 and HRE2ox5 seedlings exposed to normoxic or hypoxic (2% O2) conditions for 6 days. Capital and lowercase letters indicate significant genotype‐specific differences with a given treatment. Asterisks indicate differences between treatments in a given genotype (Kruskal–Wallis test or Mann–Whitney test, n = 18–31, P < 0.05). C: AR density of 11‐day‐old wild‐type and mutant seedlings treated with or without 5 μl·l−1 ethylene. D: AR density of 11‐day‐old wild‐type and mutant seedlings treated with or without 2 μl·l−1 1‐MCP for 6 days. Averages (±SE) in (C) and (D) were obtained in three biological replicates. Letters in (C, D) indicate statistically different values (Kruskal–Wallis test, nC 2H4 = 20–31, nMCP = 20–28, P < 0.05).