This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bridge, T. A. M.
Right arrow Articles by Johnson, D. B.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Bridge, T. A. M.
Right arrow Articles by Johnson, D. B.
Agricola
Right arrow Articles by Bridge, T. A. M.
Right arrow Articles by Johnson, D. B.

 Previous Article  |  Next Article 

Appl Environ Microbiol, June 1998, p. 2181-2186, Vol. 64, No. 6
0099-2240/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Reduction of Soluble Iron and Reductive Dissolution of Ferric Iron-Containing Minerals by Moderately Thermophilic Iron-Oxidizing Bacteria

Toni A. M. Bridgedagger and D. Barrie Johnson*

School of Biological Sciences, University of Wales, Bangor, LL57 2UW, United Kingdom

Received 29 December 1997/Accepted 24 March 1998

Five moderately thermophilic iron-oxidizing bacteria, including representative strains of the three classified species (Sulfobacillus thermosulfidooxidans, Sulfobacillus acidophilus, and Acidimicrobium ferrooxidans), were shown to be capable of reducing ferric iron to ferrous iron when they were grown under oxygen limitation conditions. Iron reduction was most readily observed when the isolates were grown as mixotrophs or heterotrophs with glycerol as an electron donor; in addition, some strains were able to couple the oxidation of tetrathionate to the reduction of ferric iron. Cycling of iron between the ferrous and ferric states was observed during batch culture growth in unshaken flasks incubated under aerobic conditions, although the patterns of oxidoreduction of iron varied in different species of iron-oxidizing moderate thermophiles and in strains of a single species (S. acidophilus). All three bacterial species were able to grow anaerobically with ferric iron as a sole electron acceptor; the growth yields correlated with the amount of ferric iron reduced when the isolates were grown in the absence of oxygen. One of the moderate thermophiles (identified as a strain of S. acidophilus) was able to bring about the reductive dissolution of three ferric iron-containing minerals (ferric hydroxide, jarosite, and goethite) when it was grown under restricted aeration conditions with glycerol as a carbon and energy source. The significance of iron reduction by moderately thermophilic iron oxidizers in both environmental and applied contexts is discussed.

* Corresponding author. Mailing address: School of Biological Sciences, University of Wales, Bangor, LL57 2UW, United Kingdom. Phone: 44 1248 382358. Fax: 44 1248 370731. E-mail: d.b.johnson{at}bangor.ac.uk.

dagger Present address: Department of Biological Sciences, University of Dundee, Tayside, DD1 4HN, United Kingdom.

Appl Environ Microbiol, June 1998, p. 2181-2186, Vol. 64, No. 6
0099-2240/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:

  • Mendez, M. O., Neilson, J. W., Maier, R. M. (2008). Characterization of a Bacterial Community in an Abandoned Semiarid Lead-Zinc Mine Tailing Site. Appl. Environ. Microbiol. 74: 3899-3907 [Abstract] [Full Text]  
  • Mathur, J., Bizzoco, R. W., Ellis, D. G., Lipson, D. A., Poole, A. W., Levine, R., Kelley, S. T. (2007). Effects of Abiotic Factors on the Phylogenetic Diversity of Bacterial Communities in Acidic Thermal Springs. Appl. Environ. Microbiol. 73: 2612-2623 [Abstract] [Full Text]  
  • Brown, D. A. (2006). Microbial mediation of iron mobilization and deposition in iron formations since the early Precambrian. Geological Society of America Memoirs 198: 239-256 [Abstract] [Full Text]  
  • Simbahan, J., Kurth, E., Schelert, J., Dillman, A., Moriyama, E., Jovanovich, S., Blum, P. (2005). Community Analysis of a Mercury Hot Spring Supports Occurrence of Domain-Specific Forms of Mercuric Reductase. Appl. Environ. Microbiol. 71: 8836-8845 [Abstract] [Full Text]  
  • Karavaiko, G. I., Bogdanova, T. I., Tourova, T. P., Kondrat'eva, T. F., Tsaplina, I. A., Egorova, M. A., Krasil'nikova, E. N., Zakharchuk, L. M. (2005). Reclassification of 'Sulfobacillus thermosulfidooxidans subsp. thermotolerans' strain K1 as Alicyclobacillus tolerans sp. nov. and Sulfobacillus disulfidooxidans Dufresne et al. 1996 as Alicyclobacillus disulfidooxidans comb. nov., and emended description of the genus Alicyclobacillus. Int. J. Syst. Evol. Microbiol. 55: 941-947 [Abstract] [Full Text]  
  • Gonzalez-Toril, E., Llobet-Brossa, E., Casamayor, E. O., Amann, R., Amils, R. (2003). Microbial Ecology of an Extreme Acidic Environment, the Tinto River. Appl. Environ. Microbiol. 69: 4853-4865 [Abstract] [Full Text]  
  • Frankel, R. B., Frankel, R. B., Bazylinski, D. A. (2003). Biologically Induced Mineralization by Bacteria. Reviews in Mineralogy and Geochemistry 54: 95-114 [Full Text]  
  • Roh, Y., Liu, S. V., Li, G., Huang, H., Phelps, T. J., Zhou, J. (2002). Isolation and Characterization of Metal-Reducing Thermoanaerobacter Strains from Deep Subsurface Environments of the Piceance Basin, Colorado. Appl. Environ. Microbiol. 68: 6013-6020 [Abstract] [Full Text]  
  • Bond, P. L., Druschel, G. K., Banfield, J. F. (2000). Comparison of Acid Mine Drainage Microbial Communities in Physically and Geochemically Distinct Ecosystems. Appl. Environ. Microbiol. 66: 4962-4971 [Abstract] [Full Text]  
  • Bond, P. L., Smriga, S. P., Banfield, J. F. (2000). Phylogeny of Microorganisms Populating a Thick, Subaerial, Predominantly Lithotrophic Biofilm at an Extreme Acid Mine Drainage Site. Appl. Environ. Microbiol. 66: 3842-3849 [Abstract] [Full Text]  
  • Pierson, B. K., Parenteau, M. N., Griffin, B. M. (1999). Phototrophs in High-Iron-Concentration Microbial Mats: Physiological Ecology of Phototrophs in an Iron-Depositing Hot Spring. Appl. Environ. Microbiol. 65: 5474-5483 [Abstract] [Full Text]  


Copyright © 2009 by the American Society for Microbiology.   For an alternate route to Journals.ASM.org, visit: http://intl-journals.asm.org | More Info»