Figure 4.

Schematic diagram of mitochondrial dynamic events of adult cardiomyocytes. (A) Mother mitochondria underwent contracting, stretching, and then splitting to generate two equal daughter mitochondria with slightly different fluorescence. (B) Two similar-sized adjacent mitochondria with different fluorescence touch and squeeze together for fusion, then stretch to normal. (C) The smaller mitochondrion moves toward the bigger mitochondrion and devotes itself to the big one. (D) Two adjacent individual mitochondria give a deep touch and quick separation to exchange the content as indicated by fluorescence. (E) The revisable mitochondria contraction. (F) The irrevisable mitochondria contraction.