(A–D) Reconstructed views of shoot meristems in wild type (A, C) and hec1,2,3 (B, D) plants grown under normal (A, B) and low light intensity conditions (C, D) (n > 13). (E) Shoot meristem size in wild type and hec1,2,3 plants grown under normal and low light intensity regimes. (F–I) Cytokinin response (pTCSn:erGFP) in shoot meristems of wild type (n > 6) (F, H) and hec1,2,3 (n > 4) (G, I) plants under normal (F, G) and low light intensity conditions (H, I). (J) Quantification of cytokinin response in wild type and hec1,2,3 shoot meristem under normal and low light regimes. Statistical test: Wilcoxon signed-ranked test (E). Scale bar: 50 µm.