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Time-lapse fluorescent images of a spreading and beating embyronic chicken cardiomyocyte transfected with α-actinin–GFP are shown as reverse contrast at the initial time point (A) 0 h, (B) 3 h later, and (C) 10 h. Four focal planes were digitally added for each time point to identify all the Z-bodies. (Bar = 5 μm.)
