Comparison of the oxidation of thiosulfate and elemental sulfur by two heterotrophic bacteria and Thiobacillus thiooxidans

I. L. Pepper, R. H. Miller

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

The rate and magnitude of the oxidation of thiosulfate (S2O3) and elemental sulfur (S°) to sulfate, by two heterotrophic soil bacteria and Thiobacillus thiooxidans was compared in liquid medium and soil. The two heterotrophic organisms, Isolate 2, which oxidized S2O3and Isolate 5, which oxidized S°, produced measurable and significant amounts of SO4in liquid media and autoclaved soil. Optimum heterotrophic oxidation occurred in autoclaved soil when the inoculated organisms were provided with an organic source of carbon as glucose. Conversely, glucose inhibited oxidation by T. thiooxidans, most likely via a build up of pyruvate. Under optimum conditions in autoclaved soil the rate and magnitude of heterotrophic oxidation were similar.

Original languageEnglish (US)
Pages (from-to)9-14
Number of pages6
JournalSoil Science
Volume126
Issue number1
DOIs
StatePublished - Jul 1978

ASJC Scopus subject areas

  • Soil Science

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