Electrochemical observations in microbiological processes. Growth of Thiobacillus Thiooxidans. II

✍ Scribed by David J. Fischer; Alma Landes; Maxwell T. Sandford; Albert E. Herner; C. J. Wesley Wiegand

• Publisher: John Wiley and Sons
• Year: 1965
• Tongue: English
• Weight: 682 KB
• Volume: 7
• Category: Article
• ISSN: 0006-3592
• DOI: 10.1002/bit.260070405

✦ Synopsis

The electrochemical activity of the individual chemicals in the nutrient medium for growth of Thiobucillus thiooxidans was studied along with the effect of the gases in equilibrium with their solutions. Several chemicals were active individually ; however, the magnitudes, as measured by changes in half-cell potential, were less than that observed when T. thioozidans was present in their composite mixture. Sterilized Skerman's mineral salts and the American Type Culture Collection (without ferrous sulfate) media were not sensitive electrochemically to changes from pure oxygen to nitrogen atmospheres. When T.

thiooziduns was present in these media, the biological half-cell emf became sensitive to changes in the oxygen content of the atmosphere in equilibrium with the organism arid nutrient. The ability of T. thiooxidans to make an electrochemical contribution, as registered by a platirium electrode, is substantiated further by these investigations.