Preferential reduction of FeIII over fumarate by Geobacter sulfurreducens

J Bacteriol. 2004 May;186(9):2897-9. doi: 10.1128/jb.186.9.2897-2899.2004.


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).

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Electrons
  • Fumarates / metabolism*
  • Geobacter / metabolism*
  • Iron / metabolism*
  • Oxidation-Reduction
  • Succinate Dehydrogenase / metabolism


  • Fumarates
  • fumaric acid
  • Iron
  • Succinate Dehydrogenase