Biochemical Genetical Studies on the Pathway of Sulphate Assimilation in Aspergillus nidulans

Nakamura, Tomoya

doi:10.1099/00221287-27-2-221

Cited by 13 publications

(1 citation statement)

References 11 publications

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“…A similar evolution of hydrogen from dithionite has been reported for the clostridia (Peck and Gest, 1956;Mortlock and Wolfe, 1959). Recent studies with Aspergillus (Nakamura, 1962) suggest that thiosulfate, or some compound in equilibrium with it, is formed prior to the incorporation of sulfur into organic acids during assimilatory sulfate reduction, and the above mechanism might also be operative during this process.…”

Section: Discussionmentioning

confidence: 99%

REDUCTION OF INORGANIC COMPOUNDS WITH MOLECULAR HYDROGEN BY MICROCOCCUS LACTILYTICUS II

Woolfolk

1962

J Bacteriol

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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. Sulfite has been implicated as an intermediate

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Section: Discussionmentioning

confidence: 99%