Microorganisms pumping iron: anaerobic microbial iron oxidation and reduction

  title={Microorganisms pumping iron: anaerobic microbial iron oxidation and reduction},
  author={Karrie A. Weber and Laurie A. Achenbach and John D. Coates},
  journal={Nature Reviews Microbiology},
Iron (Fe) has long been a recognized physiological requirement for life, yet for many microorganisms that persist in water, soils and sediments, its role extends well beyond that of a nutritional necessity. Fe(II) can function as an electron source for iron-oxidizing microorganisms under both oxic and anoxic conditions and Fe(III) can function as a terminal electron acceptor under anoxic conditions for iron-reducing microorganisms. Given that iron is the fourth most abundant element in the… 
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