Microbial sulfate reduction measured by an automated electrical impedance technique
- 28 January 1979
- journal article
- research article
- Published by Taylor & Francis in Geomicrobiology Journal
- Vol. 1 (4), 355-372
- https://doi.org/10.1080/01490457909377741
Abstract
Measurable changes occurred in the electrical impedance of growing cultures of Desuljovibrio aestuarii as compared with sterile media. The ratio of these changes (electrical impedance ratio, RI ) was measured continuously using a Bactometer 32, a magnetic tape recorder, and a computer for data retrieval. The rate of sulfate reduction correlated with the rate of change in RI in D. aestuarii cultures and sediment slurries from San Francisco Bay. Both sulfide and iron were required for maximal RI response. Molybdate (5–20 mM) totally inhibited both sulfate reduction and changes in RI in D. aestuarii cultures. Molybdate (20 mM) completely inhibited sulfate reduction in sediment slurries as measured by the impedance ratio technique or 35SO4 2‐ reduction. Sulfate reduction in sediment slurries was stimulated by lactate but not by formate, acetate, or pyruvate. The rates of sulfate reduction in San Francisco Bay sediment, estimated in vitro by the impedance ratio technique, ranges from 0.85 to 1.78 mmol/liter/lbday and compared favorably with estimates made by 33SO4 2‐ reduction.This publication has 23 references indexed in Scilit:
- Sulfate reduction, diffusion, and bioturbation in Long Island Sound sediments; report of the FOAM GroupAmerican Journal of Science, 1977
- THE PYRITIZATION OF BASIC FERRIC SULFATES IN ACID SULFATE SOILS: A MICROBIOLOGICAL INTERPRETATIONCanadian Journal of Soil Science, 1976
- Metal accumulation by bacteria with particular reference to dissimilatory sulphate-reducing bacteriaJournal of Basic Microbiology, 1976
- ATP synthesis driven by a protonmotive force inStreptococcus lactisThe Journal of Membrane Biology, 1975
- A study of mixed continuous cultures of sulfate-reducing and methane-producing bacteriaMicrobial Ecology, 1975
- Methane Production in the Interstitial Waters of Sulfate-Depleted Marine SedimentsScience, 1974
- Early diagenesis in a reducing fjord, Saanich Inlet, British Columbia—I. chemical and isotopic changes in major components of interstitial waterGeochimica et Cosmochimica Acta, 1972
- The Evaluation of Media used to Enumerate Sulphate Reducing BacteriaJournal of Applied Bacteriology, 1970
- The ATP pool in Escherichia coli. I. Measurement of the pool using a modified luciferase assayBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1967
- Sulfate-Reducing Bacteria and Pyritic Sediments in AntarcticaScience, 1961