Microbial ecology has undergone a profound change in the last two decades with regard to
methods employed for the analysis of natural communities. Emphasis has shifted from …

Extreme thermoacidophiles (T opt> 65° C, pHopt< 3.5) inhabit unique environments fraught
with challenges, including extremely high temperatures, low pH, as well as high levels of …

Uncovers the Key Role Microbes Play in the Transformation of Oxidizable and Reducible
MineralsMany areas of geomicrobial processes are receiving serious attention from …

Mercuric mercury (Hg [II]) is a highly toxic and mobile element that is likely to have had a
pronounced and adverse effect on biology since Earth's oxygenation∼ 2.4 billion years ago …

Mercury (Hg) is a highly toxic element due to its high affinity for protein sulfhydryl groups,
which upon binding, can destabilize protein structure and decrease enzyme activity …

The Yellowstone caldera contains the most numerous and diverse geothermal systems on
Earth, yielding an extensive array of unique high-temperature environments that host a …

Mercuric reductase (MerA) is central to the mercury (Hg) resistance (mer) system, catalyzing
the reduction of ionic Hg to volatile Hg (0). A total of 213 merA homologues were identified in …

Microbial chemical transformations play a key role in geochemical cycles of most elements
by changing their redox states and by converting between organic and inorganic forms. As a …

We are becoming increasingly aware of the role played by archaea in the biogeochemical
cycling of the elements. Metabolism of metals is linked to fundamental metabolic functions …

The discovery of archaeal lineages is critical to our understanding of the universal tree of life
and evolutionary history of the Earth. Geochemically diverse thermal environments in …