Fig. 10.

Median immunofluorescence intensity (a.u. arbitrary units) evaluated following detection of histone H4 acetylated Lys5 in seedlings incubated in H₂O and HU. Successive phases of the cell cycle in the control plants denoted as Control-G1, Control-S, and Control-G2, while in seedlings incubated in 2.5 mM HU (24 h) denoted as HU-G1, HU-S, and HU-G2. Statistical significance (Kruskal–Wallis test): *p < 0.001 control-G1/HU-G1, control-S/HU-S, control-G2/HU-G2; ^# p < 0.001 control-G1/control-S, control-G1/control-G2, HU-G1/HU-S, HU-G1/HU-G2