Fig. 2.

Symptom development in Arabidopsis Col-0 after infection with R. fascians strain D188 and simultaneous treatment with 10 µM D2 or1 µM GR24 showing that the strigolactone level determines the efficiency of symptom development. (A) Quantification of axillary activation (number of outgrowing shoot meristems per plant ranging between 0 and 5) at 10 dpi on at least 30 plants per treatment. Letters indicate statistical differences per treatment after a Kruskal–Wallis and Mann–Whitney U analysis followed by a Bonferroni correction for multiple comparisons (P = 0.05/n, with n = number of comparisons). (B) Phenotype of representative plant rosettes at 42 dpi. All images were taken at the same magnification. Bar = 1cm.