A wide array of microorganisms, including many novel, phylogenetically deeply rooted taxa,
survive and thrive in extreme environments. These unique and reduced-complexity …

Biofilms are a form of collective life with emergent properties that confer many advantages
on their inhabitants, and they represent a much higher level of organization than single cells …

Microbial life in marine sediment contributes substantially to global biomass and is a crucial
component of the Earth system. Subseafloor sediment includes both aerobic and anaerobic …

A census of the biomass on Earth is key for understanding the structure and dynamics of the
biosphere. However, a global, quantitative view of how the biomass of different taxa …

Microbial dissimilatory sulfate reduction to sulfide is a predominant terminal pathway of
organic matter mineralization in the anoxic seabed. Chemical or microbial oxidation of the …

Despite accounting for a significant portion of the Earth's prokaryotic biomass, controls on
the abundance and biodiversity of microorganisms residing in the continental subsurface …

Abstract Microbes in Guaymas Basin (Gulf of California) hydrothermal sediments thrive on
hydrocarbons and sulfur and experience steep, fluctuating temperature and chemical …

Organic carbon in marine sediments is a critical component of the global carbon cycle, and
its degradation influences a wide range of phenomena, including the magnitude of carbon …

In marine sediments, DNA occurs both inside and outside living organisms. DNA not
enclosed in living cells may account for the largest fraction of total DNA, and include …

The rate of primary productivity is a keystone variable in driving biogeochemical cycles
today and has been throughout Earth's past. 1 For example, it plays a critical role in …