Mitochondrial fusion is the physical merging of the outer and then the inner mitochondrial membranes of two originally distinct mitochondria. Mitochondrial division is the breaking apart of one ...

1 - Chloroplasts (fluorescence of chlorophyll), 2 - mitochondria stained with rhodamine dye, 3 - ROS (fluorescence of 2',7'-dichlorofluorescein), 4 - joint image of chloroplasts, mitochondria and ROS.