Acid mine drainage (AMD) emplacements are low-complexity natural systems. Low-pH
conditions appear to be the main factor underlying the limited diversity of the microbial …

The dissolution of sulfide minerals such as pyrite (FeS2), arsenopyrite (FeAsS), chalcopyrite
(CuFeS2), sphalerite (ZnS), and marcasite (FeS2) yields hot, sulfuric acid-rich solutions that …

Industrial activities and the natural oxidation of metallic sulfide-ores produce sulfate-rich
waters with low pH and high heavy metals content, generally termed acid mine drainage …

The prevalence of multidrug‐resistant microbial pathogens due to the continued misuse and
overuse of antibiotics in agriculture and medicine is raising the prospect of a return to the …

Microorganisms that have a pH optimum for growth of less than pH 3 are termed
'acidophiles'. To grow at low pH, acidophiles must maintain a pH gradient of several pH units …

A wide array of microorganisms survive and thrive in extreme environments. However, we
know little about the patterns of, and controls over, their large-scale ecological distribution …

Background Analyses of DNA sequences from cultivated microorganisms have revealed
genome-wide, taxa-specific nucleotide compositional characteristics, referred to as genome …

Hydroxyl radicals (radical dot OH) produced from pyrite oxidation by O 2 have been
recognized, but mechanisms regarding the production under anoxic and oxic conditions are …

The continuous rise of atmospheric nitrous oxide (N 2 O) is an environmental issue of global
concern. In biogeochemical studies, N 2 O production is commonly assumed to arise solely …

Using genomic and mass spectrometry–based proteomic methods, we evaluated gene
expression, identified key activities, and examined partitioning of metabolic functions in a …