Related Experiment Video
Updated: Jul 29, 2026

A Fluorescence Microscopy Assay for Monitoring Mitophagy in the Yeast Saccharomyces cerevisiae
Published on: July 18, 2011
Division of Physarum mitochondria during starvation
Z Baranowski1, B Hrebenda, M Cieslawska
1Nencki Institute of Experimental Biology, Warszawa, Poland.
Abstract:
Microplasmodia of Physarum polycephalum used in this study form spherules after 18 h of starvation. Stereological morphometry revealed that between the 2nd and the 5th hour of starvation the number of mitochondria in 1 mm3 of cytoplasm rises from about 12 to 24 millions and the mean volume of mitochondria drops from circa 4.6 to 3.0 microns3. This denotes the synchronous division of mitochondria. The daughter mitochondria show an increase in density of the matrix and a decrease in condensation of the net of tubular cristae. The mitochondrial division, decrease in activity of the respiratory chain and maximum of its cyanide resistance occur at the same time.
Related Concept Videos
Mitochondrial Membranes
Translocation of Proteins into the Mitochondria
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Distribution of Cytoplasmic Content
Distribution of cytoplasmic determinants
The cytoplasm contains various organelles, as well as salts, proteins, and water. The distribution of small...

