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. 1999 Jun 1;113(6):909–918. doi: 10.1085/jgp.113.6.909

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Concentration dependence of the NH₄ ⁺ inhibition of wild-type and akt1 germination rate (embryo growth). Each datum is the mean ± SEM of at least three independent trials, with each trial involving 24 seeds. (A) [K⁺]_ext = 10 μM; (B) [K⁺]_ext = 100 μM; (C) [K⁺]_ext = 1,000 μM. ○, wild-type; •, akt1.