%0 Journal Article %T The microbial ferrous wheel: iron cycling in terrestrial, freshwater, and marine environments %A David Emerson %A Eric Roden %A Benjamin S. Twining %J Frontiers in Microbiology %D 2012 %I Frontiers Media %R 10.3389/fmicb.2012.00383 %U http://www.frontiersin.org/Journal/10.3389/fmicb.2012.00383/full