REDUCTION OF INORGANIC COMPOUNDS WITH MOLECULAR HYDROGEN BY MICROCOCCUS LACTILYTICUS II. : Stoichiometry with Inorganic Sulfur Compounds
AUTOR(ES)
Woolfolk, C. A.
RESUMO
Woolfolk, C. A. (University of Washington, Seattle). Reduction of inorganic compounds with molecular hydrogen by Micrococcus lactilyticus. II. Stoichiometry with inorganic sulfur compounds. J. Bacteriol. 84:659–668. 1962.—Extracts of Micrococcus lactilyticus (Veillonella alcalescens) are capable of utilizing molecular hydrogen for the reduction of metabisulfite (pyrosulfite) to thiosulfate via dithionite as an intermediate. The first step of metabisulfite reduction (i.e., to dithionite) is reversible, and, when dithionite is added as a substrate, there is an evolution of molecular hydrogen accompanied by the formation of equilibrium concentrations of metabisulfite. Kinetic studies indicate that dithionite may be directly reduced to thiosulfate without the formation of sulfoxylate as an intermediate. Although tetrathionate is reduced to thiosulfate with an uptake of hydrogen, polythionates probably are not formed as intermediates in the reduction of metabisulfite to thiosulfate.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=277941Documentos Relacionados
- REDUCTION OF INORGANIC COMPOUNDS WITH MOLECULAR HYDROGEN BY MICROCOCCUS LACTILYTICUS I. : Stoichiometry with Compounds of Arsenic, Selenium, Tellurium, Transition and Other Elements
- DEGRADATION OF PYRUVATE BY MICROCOCCUS LACTILYTICUS II. : Studies of Cofactors in the Formate-Exchange Reaction
- Studies on the Anaerobic Micrococci: II. The Fermentation of Lactate by Micrococcus lactilyticus
- ACCUMULATION OF INORGANIC POLYPHOSPHATE IN AEROBACTER AEROGENES II. : Environmental Control and the Role of Sulfur Compounds
- SULFUR METABOLISM IN ESCHERICHIA COLI II. : Competitive Utilization of Labeled and Nonlabeled Sulfur Compounds