Fig. 4 in Acropetal and basipetal cardenolide transport in Erysimum cheiranthoides (wormseed wallflower)

Fig. 4. Cotyledons retain the maternal plant cardenolide phenotype until true leaf emergence. (A) Cardenolide content of cotyledons before true leaf emergence, (B) cardenolide content of cotyledons after true leaf emergence, (C) cardenolide content of true leaves. Different letters indicate P <0.05 differences for each cardenolide, ANOVA followed by Tukey's HSD test. Bars are mean ± s.d. of N = 6–10. wt = wildtype E. cheiranthoides var. Elbtalaue, 454 = 454 cardenolide mutant line. Peak areas were normalized to an ouabain internal standard.