Structural differences in two biochemically defined populations of cardiac mitochondria.

  title={Structural differences in two biochemically defined populations of cardiac mitochondria.},
  author={Alessandro Riva and Bernard Tandler and Felice Loffredo and Edwin V{\'a}zquez and Charles L. Hoppel},
  journal={American journal of physiology. Heart and circulatory physiology},
  volume={289 2},
To determine whether there are structural differences in two topologically separated, biochemically defined mitochondrial populations in rat heart myocytes, the interior of these organelles was examined by high-resolution scanning electron microscopy. On the basis of a count of 159 in situ subsarcolemmal mitochondria (SSM, i.e., those that directly abut the sarcolemma), these organelles possess mainly lamelliform cristae (77%), whereas the cristae in in situ interfibrillar mitochondria (IFM, i… CONTINUE READING


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