Abstract
The loci of succinic dehydrogenase in Bacillus stearothermophilus were sought, using as a marker of activity tellurium deposits resulting from the reduction of tellurite. The tellurium was located in spindle-like structures found within the cytoplasmic membrane. There was evidence also of some kind of internal structure within the spindle. Upon disintegration of the latter, particles were obtained which still retained dehydrogenase activity.
