Anaerobic ammonium oxidation (anammox) is a microbial process in which NH4+ is
oxidized to N2 gas with NO2− as an electron acceptor. The anammox process is mediated …

The activities of complex communities of microbes affect biogeochemical transformations in
natural, managed and engineered ecosystems. Meaningfully defining what constitutes a …

Carbon is a keystone element in global biogeochemical cycles. It plays a fundamental role
in biotic and abiotic processes in the ocean, which intertwine to mediate the chemistry and …

The Permian–Triassic Boundary event at 252.2 Ma marks the largest extinction of marine
fauna in the Phanerozoic and there is a wide consensus that the extinction coincided with an …

The thermodynamics for the first electron transfer step for sulfide and oxygen indicates that
the reaction is unfavorable as unstable superoxide and bisulfide radical ions would need to …

The characteristic glycerol dibiphytanyl glycerol tetraether membrane lipids (GDGTs) of
marine ammonia-oxidizing archaea (AOA) are widely used as biomarkers for studying their …

Thaumarchaeota are globally distributed and abundant microorganisms occurring in diverse
habitats and thus represent a major source of archaeal lipids. The scope of lipids as …

The exposome depicts the total exposures in the lifetime of an organism. Human exposome
comprises exposures from environmental and humanistic sources. Biological, chemical, and …

Dissolved oxygen concentration plays a major role in sha** biotic interactions and nutrient
flows within marine ecosystems. Throughout the global ocean, regions of low dissolved …

Pelagic ecosystems can become depleted of dissolved oxygen as a result of both natural
processes and anthropogenic effects. As dissolved oxygen concentration decreases, energy …