V. COMPARATIVE METABOLISM OF INORGANIC SULFUR COMPOUNDS IN MICROORGANISMS

Symposium on metabolism of inorganic compounds. V. Comparative metabolism of inorganic sulfur compounds in microorganisms.

Regulation of a novel Acidithiobacillus caldus gene cluster involved in metabolism of reduced inorganic sulfur compounds.

Acidithiobacillus caldus has been proposed to play a role in the oxidation of reduced inorganic sulfur compounds (RISCs) produced in industrial biomining of sulfidic minerals. Here, we describe the regulation of a new cluster containing the gene encoding tetrathionate hydrolase (tetH), a key enzyme in the RISC metabolism of this bacterium. The cluster contains five cotranscribed genes, ISac1, r...

Discrimination between 34S and 32S during bacterial metabolism of inorganic sulfur compounds.

Sulfur isotope effects during the oxidation of thiosulfate by Thiobacillus versutus were found to be negligible. This result is considered in relation to other oxidative and reductive processes to assess which reactions are most likely to control the isotopic compositions of sulfur compounds in microbial sulfureta.

Studies of bromine-oxidizable sulfur-containing compounds in mold metabolism.

Sulfur metabolism in Escherichia coli. IV. Influence of nonmethionine sulfur compounds upon a methionine requiring mutant.

The inability of the methionine requiring Escherichia coli mutant (1-344) to grow in methionine free media containing inorganic sulfur, cystine, or homocystine has been demonstrated (Lampen et al., 1947). While methionine has been shown to be essential for growth, the metabolism of nonmethionine sulfur added to media containing methionine has not been investigated directly. In the results repor...