CYCD3 expression during R. fascians symptomatology. A to C, Expression kinetics of CYCD3;1 (A), CYCD3;2 (B), and CYCD3;3 (C) in leaf 8 upon infection with R. fascians strains D188-5 and D188. D to I, Histochemical localization of CYCD3;1 (D and E), CYCD3;2 (F and G), and CYCD3;3 (H and I) upon R. fascians D188-5 (D, F, and H) and D188 (E, G, and I) infection at 24 dpi.