Glycerol dialkyl glycerol tetraether (GDGT) lipids are membrane lipids which were long
thought to be synthesized mainly by archaea, organisms thought to be limited to extreme …

A great number of the bacteria and archaea on Earth are found in subsurface environments
in a physiological state that is poorly represented or explained by laboratory cultures …

In this concept paper, we propose a new view on soil organic matter (SOM) formation:
microorganisms use most of the organics entering the soil as energy rather than as a source …

The ability of microorganisms to withstand long periods with extremely low energy input has
gained increasing scientific attention in recent years. Starvation experiments in the …

A general review of the sub-seafloor biosphere is presented. This includes an update and
assessment of prokaryotic cell distributions within marine sediments, current deepest 1922 …

One of the most prominent features of archaea is the extraordinary diversity of their DNA
viruses. Many archaeal viruses differ substantially in morphology from bacterial and …

Investigations of the biogeochemical roles of benthic A rchaea in marine sediments are
hampered by the scarcity of cultured representatives. In order to determine their metabolic …

Sparse microbial populations persist from seafloor to basement in the slowly accumulating
oxic sediment of the oligotrophic South Pacific Gyre (SPG). The physiological status of these …

Organic carbon processing at the seafloor is studied by biogeochemists to quantify burial
and respiration, by organic geochemists to elucidate compositional changes and by …

Members of the highly diverse Miscellaneous Crenarchaeotal Group (MCG) are globally
distributed in various marine and continental habitats. In this study, we applied a polyphasic …