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. 2012 May 25;7(5):e37287. doi: 10.1371/journal.pone.0037287

Figure 7. Chemical PARP inhibition alters photosynthesis.

Figure 7

Arabidopsis seedlings (Col-0) were grown at 80–100 µE, 22°C on MS medium with (+3 MB) or without (−3 MB) the PARP inhibitor 3-Methoxy-benzamide (3 MB) and subjected to different conditions: control and oxidative stress (0.1 µM Paraquat) and for the chlorophyll measurements also sucrose (3.5% sucrose). A, shows the non-photochemical quenching (NPQ), the proportion of open PSII reaction centers (qP) and the effective quantum yield (Y_II) measured via PAM imaging. B, shows the chlorophyll content after 8 days. For (A) 8–18 seedlings were analyzed in each of the 4 independent experiments (n = 42); for (B) data are combined from three independent experiments with 5 replicates in each experiment (n = 15). Asterisks indicate significant difference (P<0.05) between seedlings grown in the same condition but treated with 3 MB or without 3 MB.