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Fig. 6. Treatment with H2O2 leads to an increase in DNA
fragmentation in the cells of stolon tips. (A) There is an increase in DNA
fragmentation in cells of peroxide-treated stolon tips. Mean ± s.e.m.
luminance (grayscale from 0 to 4095) of FITC-labeled dUTP for three stolon
tips per replicate colony (filled bars, control; unfilled bars, 5 mmol
l–1 H2O2). (B) There is no significant
difference between treatments in cells labeled with PI in stolon tips. Mean
± s.e.m. luminance (grayscale from 0 to 4095) of PI-labeled cells for
three stolon tips per replicate colony (filled bars, control; unfilled bars, 5
mmol l–1 H2O2).