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. 2009 Dec;21(12):3803–3822. doi: 10.1105/tpc.109.070201

Figure 6.

Figure 6.

The Effect of Ethylene and ABA on the Germination of Arabidopsis: Wild type (Col) and Ethylene-Related Mutants (aco2 and ctr1).

(A) The effect of the ethylene precursor ACC on testa and endosperm rupture of wild-type seeds incubated on medium without (CON) or with NBD or ABA for 38 h.

(B) The effect of ACC on the germination rates GR50% (= 1/t50%) of wild-type and ethylene-related mutants incubated on medium with ABA. Numbers above the columns are GR50% ratios (ABA±ACC). Inset: GRX% ratios at other percentages of endosperm rupture. Incubation conditions: continuous light, 24°C, no cold stratification. Medium additions, as indicated: 1 μM ABA, 1 mM ACC, and 100 μL/L NBD. Mean values ± se of 3 × 50 seeds are presented. For detailed time courses, see Supplemental Figure 2 online.