In addition to its central role in mediating electron-transfer reactions within all living cells,
iron undergoes extracellular redox transformations linked to microbial energy generation …

Many iron (Fe) redox processes that were previously assumed to be purely abiotic, such as
photochemical Fe reactions, are now known to also be microbially mediated. Owing to this …

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 …

The potential for microscale bacterial Fe redox cycling was investigated in microcosms
containing ferrihydrite-coated sand and a coculture of a lithotrophic Fe (II)-oxidizing …

Iron is the most abundant element on Earth and the most frequently utilized transition metal
in the biosphere. It is a component of many cellular compounds and is involved in numerous …

Iron is the most abundant redox‐active metal in the Earth's crust. The one electron transfer
between the two most common redox states, Fe (II) and Fe (III), plays a role in a huge range …

Recent studies of bacterial Fe (II) oxidation at circumneutral pH by a newly-isolated
lithotrophic β-Proteobacterium (strain TW2) are reviewed in relation to a conceptual model …

Environmental context. Microbial ecosystems are characterised by the interplay of various
microorganisms with their biotic and abiotic environment. Biogeochemical niches host …

Preface. Iron is considered to be a minor element employed, in a variety of forms, by nearly
all living organisms. In some cases, it is utilised in large quantities, for instance for the …

Oxidation and reduction of iron can occur through abiotic (chemical) and biotic (microbial)
processes. Abiotic iron oxidation is a function of pH and O2 concentration. Biotic iron …