Abstract
Summary
Reducing activity in living tissue can be demonstrated with the aid of potassium tellurite. Under the microscope, the sites of reduction are indicated by insoluble dark tellurium. Various bacteria, including strictly anaerobic ones as well as yeast and leucocytes from human material, reduced posassium tellurite. Among different mammalian tissue examined, kidney gave the most constant result, permitting histochemical localization in certain portions of the nephron. Active SH groups apparently are essential for the reduction of potassium tellurite by living tissues.
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