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Journal of Bacteriology, May 2004, p. 2897-2899, Vol. 186, No. 9
0021-9193/04/$08.00+0     DOI: 10.1128/JB.186.9.2897-2899.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

Preferential Reduction of Fe(III) over Fumarate by Geobacter sulfurreducens

Abraham Esteve-Núñez,1* Cinthia Núñez,1,2 and Derek R. Lovley1

Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003,1 Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62251, México2

Received 23 October 2003/ Accepted 16 January 2004

The presence of Fe(III), but not that of Fe(II), resulted in ca. 20-fold-lower levels of mRNA for fumarate reductase, inhibiting fumarate reduction and favoring utilization of fumarate as an electron donor in chemostat cultures of Geobacter sulfurreducens, despite the fact that growth yield with fumarate was 3-fold higher than with Fe(III).

* Corresponding author. Mailing address: University of Massachusetts, Dept. of Microbiology, Morrill Science Center IVN, Amherst, MA 01003. Phone: (413) 545-9782. Fax: (413) 545-1578. E-mail: aesteve{at}microbio.umass.edu.

Journal of Bacteriology, May 2004, p. 2897-2899, Vol. 186, No. 9
0021-9193/04/$08.00+0     DOI: 10.1128/JB.186.9.2897-2899.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Dale, J. R., Wade, R. Jr., DiChristina, T. J. (2007). A Conserved Histidine in Cytochrome c Maturation Permease CcmB of Shewanella putrefaciens Is Required for Anaerobic Growth below a Threshold Standard Redox Potential. J. Bacteriol. 189: 1036-1043 [Abstract] [Full Text]  
  • Mahadevan, R., Bond, D. R., Butler, J. E., Esteve-Nunez, A., Coppi, M. V., Palsson, B. O., Schilling, C. H., Lovley, D. R. (2006). Characterization of Metabolism in the Fe(III)-Reducing Organism Geobacter sulfurreducens by Constraint-Based Modeling. Appl. Environ. Microbiol. 72: 1558-1568 [Abstract] [Full Text]  


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