GLUTATHIONE AND SULFUR OXIDATION BY THIOBACILLUS THIOOXIDANS | Zendy

Isamu Suzuki | Zendy; C. H. Werkman | Zendy

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GLUTATHIONE AND SULFUR OXIDATION BY THIOBACILLUS THIOOXIDANS

Author(s) -

Isamu Suzuki,

C. H. Werkman

Publication year - 1959

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.45.2.239

Subject(s) - thiobacillus , sulfur , glutathione , chemistry , biochemistry , acidithiobacillus thiooxidans , environmental chemistry , copper , enzyme , organic chemistry , bioleaching , acidithiobacillus ferrooxidans

The ability of Thiobacillus thiooxidans to oxidize elemental sulfur to sulfuric acid has been known since Waksman and Joffe' first isolated this chemoautotrophic bacterium in 1922. The mechanism of sulfur oxidation, however, has remained virtually unsolved in spite of efforts by many workers. In his study on the formation of sulfide by sulfur bacteria, Starkey2 observed that T. thiooxidans evolved a small amount of hydrogen sulfide from sulfur. He suggested that sulfide was formed from sulfur by sulfhydryl groups present in the cells, through a mechanism similar to that proposed by Sluiter.3 Sluiter showed a nonenzymic reduction of elemental sulfur by reduced glutathione (GSH), forming hydrogen sulfide and oxidized glutathione (GSSG), according to the equation

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