Skip to main content
. 2015 Feb 3;10(2):e0116757. doi: 10.1371/journal.pone.0116757

Fig 3. Percentage of chloroplasts adopting the face or profile position per mesophyll cell of Lemna trisulca in various experimental variants.

Fig 3

During incubation, control plants and plants treated with lead (15 μM Pb2+) were placed in darkness for 24 h, weak white light (WW; 50 μE m-2s-1, 1 h after 24 h in darkness or strong white light (SW; 1000 μEm-2s-1, 1 h after 24 h in darkness). In two variants, plants were treated with catalase (100 U, CAT) alone or with Pb in darkness for 24 h. For comparison with the reaction to lead, some plants were treated with H2O2 alone (10–3 M) for the last 3 h in darkness. Different small letters (a-g) denote statistically significant differences (p < 0.05).