Volume 131, Issue 7, (December 2007) Cell Biology Select    Cell  Volume 131, Issue 7, (December 2007) DOI: 10.1016/j.cell.2007.12.012 Copyright © 2007 Terms and Conditions

Overexpression of FoxO3 in adult myofibers induces autophagy (green) to engulf cytosolic components including mitochondria (red). Image courtesy of M. Sandri. Cell 2007 131, DOI: (10.1016/j.cell.2007.12.012) Copyright © 2007 Terms and Conditions

Starvation-induced autophagy (red) is observed in control (left) but not Atg7 mutant (right) flies. DNA, blue. Image courtesy of T. Neufeld. Cell 2007 131, DOI: (10.1016/j.cell.2007.12.012) Copyright © 2007 Terms and Conditions

Drosophila cells mutant for fab1 accumulate autophagic material (green), whereas wild-type neighboring cells (red) do not. Image courtesy of H. Stenmark. Cell 2007 131, DOI: (10.1016/j.cell.2007.12.012) Copyright © 2007 Terms and Conditions