The discovery of chemosynthetic ecosystems at deep-sea hydrothermal vents in 1977
changed our view of biology. Chemosynthetic bacteria and archaea form the foundation of …

The aqueous alteration of ultramafic rocks through serpentinization liberates mantle carbon
and reducing power. Serpentinization occurs in numerous settings on present day Earth …

The deep sea, the largest ocean's compartment, drives planetary-scale biogeochemical
cycling. Yet, the functional exploration of its microbial communities lags far behind other …

Hydrogen is a key energy source for subsurface microbial processes, particularly in
subsurface environments with limited alternative electron donors, and environments that are …

This paper presents a reformulation of the submarine alkaline hydrothermal theory for the
emergence of life in response to recent experimental findings. The theory views life, like …

Carbon mineralization sequesters CO2 by reaction of alkaline earth metal bearing silicate
and hydroxide minerals with CO2 to form stable carbonate minerals. Seifritz (1990) …

Little is known of acetogens in contemporary serpentinizing systems, despite widely
supported theories that serpentinite-hosted environments supported the first life on Earth via …

The recent discovery of Nitrospira species capable of complete ammonia oxidation
(comammox) in non-marine natural and engineered ecosystems under mesothermal …

Microbial abundance and diversity in deep subsurface environments is dependent upon the
availability of energy and carbon. However, supplies of oxidants and reductants capable of …

The process of serpentinization creates strongly reducing conditions and produces fluids
that are highly enriched in molecular hydrogen and methane. Some microorganisms are …