Minerals and organic matter (OM) may form intricate associations via myriad interactions. In
soils, the associations of OM with mineral surfaces are mainly investigated because of their …

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 …

The two microaerophilic, Fe-oxidizing bacteria (FeOB) Sideroxydans ES-1 and Gallionella
ES-2 have single circular chromosomes of 3.00 and 3.16 Mb that encode 3049 and 3006 …

The use of organic soils by agriculture involves drainage and tillage, and the resulting
increase in C and N turnover can significantly affect their greenhouse gas balance. This …

Frequent cycles of flooding and drainage in paddy soils lead to the reductive dissolution of
iron (Fe) minerals and the reoxidation of Fe (II) species, all while generating a robust and …

Sideroxydans lithotrophicus ES-1 grows autotrophically either by Fe (II) oxidation or by
thiosulfate oxidation, in contrast to most other isolates of neutrophilic Fe (II)-oxidizing …

The accessibility of iron (Fe) species for microbial processes is dependent on solubility and
redox state, which are influenced by complexation with dissolved organic matter (DOM) and …

We identified and quantified abundant iron-oxidizing bacteria (FeOB) at three iron-rich,
metal-contaminated creek sites with increasing sediment pH from extremely acidic (R1, pH …

Despite the historical and economic significance of banded iron formations (BIFs), we have
yet to resolve the formation mechanisms. On modern Earth, neutrophilic microaerophilic Fe …

An acid mine drainage (pH 2.5–2.7) stream biofilm situated 250 m below ground in the low-
temperature (6–10° C) Kristineberg mine, northern Sweden, contained a microbial …