Association between intermediate-sized filaments and mitochondria in rat Leydig cells.
The cytoplasmic filamentous structures of the testis Leydig cells have been studied in the rat after double fixation with glutaraldehyde and osmium-potassium ferrocyanide. A good preservation of the cytoplasmic filaments was obtained and their abundance in the rat Leydig cells become apparent. Judging from their diameter (8-11 nm) and general morphology most of the filaments observed belong to the intermediate-sized type. The close association between filament bundles and mitochondria is described. Some images show cross-bridges between individual filaments and mitochondria and their attachment to the mitochondria outer membrane.
D000818:Animals; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D003599:Cytoskeleton / Q000648:ultrastructure*; D005295:Ferrocyanides; D005404:Fixatives; D005976:Glutaral; D006003:Glycogen; D007985:Leydig Cells / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure*; D009993:Osmium Tetroxide; D051381:Rats
D005295:Ferrocyanides; D005404:Fixatives; D006003:Glycogen; D009993:Osmium Tetroxide; D005976:Glutaral