JCS -- Walter et al. 119 (9): 1843 Figure IG3

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Fig. 3. ${Delta}$ bir1 cells undergo apoptosis. Confocal fluorescence (first and third column of panels), and coincident fluorescence and differential-interference-contrast (second and fourth column of panels) images are shown. (A) Wild-type (BYa) and ${Delta}$ bir1 cells were grown in YPAD medium, treated with 0.8 mM H₂O₂ for 4 hours and analysed for apoptotic hallmarks. DNA was visualized by Sytox-Green nucleic acid stain. DNA-strand breaks were detected by the TUNEL test and ROS by DHR staining. Bars, 2.5 µm (DNA); 5 µm (ROS); 10 µm (TUNEL). (B) Survival of wild-type (BYa) and ${Delta}$ bir1 cells after incubation with H₂O₂ for 4 hours at indicated concentrations. Error bars, mean + s.e.m.