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Fig. 4 | BMC Plant Biology

Fig. 4

From: Reactive oxygen species mediate tapetal programmed cell death in tobacco and tomato

Fig. 4

Tapetal PCD during tobacco anther development by TUNEL assays. ad Fluorescence microscope of cross-sections of tobacco anthers at stage 9 (a), stage 10 (b), stage 11 (c), and stage 12 (d). Green fluorescence indicates TUNEL-positive signals while red fluorescence indicates propidium iodide (PI) staining. Corresponding transmission images are placed below the fluorescence images. Bars, 50 μm

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