Collaborative microbial Fe-redox cycling by pelagic floc bacteria across wide ranging oxygenated aquatic systems

Fe(III)-reducing bacteria (IRB) and Fe(II)-oxidizing bacteria (IOB) significantly impact the transformations and geochemical cycling of Fe. As these bacteria are thought to be differentially segregated to specific environments reflecting oxygen and pH restrictions on their respective metabolisms, their impact on Fe biogeochemistry in pelagic environments has not been well investigated. Here we report the discovery of cooperative Fe-redox …