This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Silver, M. Articles by Lundgren, D. G. Search for Related Content PubMed PubMed Citation Articles by Silver, M. Articles by Lundgren, D. G.

Effect of Glucose on Carbon Dioxide Assimilation and Substrate Oxidation by Ferrobacillus ferrooxidans

^a Department of Bacteriology and Botany, Biological Research Laboratories, Syracuse University, Syracuse, New York 13210

ABSTRACT

Ferrobacillus ferrooxidans, grown on either elemental sulfur or ferrous sulfate, was able to use either substrate as an energy source for the assimilation of CO₂. In both cases, 0.01 µmole of carbon was incorporated per µmole of oxygen utilized. Glucose inhibited substrate oxidation and CO₂ fixation. Sulfur and iron oxidation were inhibited 5 to 15% and 40 to 50%, respectively, in the presence of 10% glucose. Under the same conditions, CO₂ assimilation was inhibited 50% with elemental sulfur as the energy source, and was almost totally inhibited when ferrous iron was used.

¹ Permanent address: Department of Food and Biotechnology, Technion, Haifa, Israel.