PARP inhibition induced cell number increase.

<p>Arabidopsis leaf two was analyzed after two days of transferring the seedlings (day2) or after seven days (day7) either to treatment or control conditions. (A) Cell number per mm², (B) cell size in µm and (C) the calculated cell number per leaf is presented. Seedlings were previous grown for seven days in control conditions. In each experiment 4–6 leafs were analyzed and the experiment repeated three times independently (n = 12–18). Significant differences (P<0.05) between treated and untreated plants is indicated by an asterisk.