Changing perspectives in marine nitrogen fixation
BACKGROUND Biological dinitrogen (N2) fixation, the reduction of atmospheric N2 to
ammonia, is important for maintaining the fertility of the oceans by providing biologically …
ammonia, is important for maintaining the fertility of the oceans by providing biologically …
Global nitrogen cycle: critical enzymes, organisms, and processes for nitrogen budgets and dynamics
Nitrogen (N) is used in many of life's fundamental biomolecules, and it is also a participant in
environmental redox chemistry. Biogeochemical processes control the amount and form of N …
environmental redox chemistry. Biogeochemical processes control the amount and form of N …
Deep ocean metagenomes provide insight into the metabolic architecture of bathypelagic microbial communities
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 …
cycling. Yet, the functional exploration of its microbial communities lags far behind other …
Upper ocean biogeochemistry of the oligotrophic North Pacific Subtropical Gyre: from nutrient sources to carbon export
Abstract Subtropical gyres cover 26%–29% of the world's surface ocean and are
conventionally regarded as ocean deserts due to their permanent stratification, depleted …
conventionally regarded as ocean deserts due to their permanent stratification, depleted …
Microbial dynamics of elevated carbon flux in the open ocean's abyss
In the open ocean, elevated carbon flux (ECF) events increase the delivery of particulate
carbon from surface waters to the seafloor by severalfold compared to other times of year …
carbon from surface waters to the seafloor by severalfold compared to other times of year …
Biological composition and microbial dynamics of sinking particulate organic matter at abyssal depths in the oligotrophic open ocean
Sinking particles are a critical conduit for the export of organic material from surface waters
to the deep ocean. Despite their importance in oceanic carbon cycling and export, little is …
to the deep ocean. Despite their importance in oceanic carbon cycling and export, little is …
Diazotrophs are overlooked contributors to carbon and nitrogen export to the deep ocean
Diazotrophs are widespread microorganisms that alleviate nitrogen limitation in 60% of our
oceans, thereby regulating marine productivity. Yet, the group-specific contribution of …
oceans, thereby regulating marine productivity. Yet, the group-specific contribution of …
Processes and microorganisms involved in the marine nitrogen cycle: knowledge and gaps
Nitrogen (N) is a key element for life in the oceans. It controls primary productivity in many
parts of the global ocean, consequently playing a crucial role in the uptake of atmospheric …
parts of the global ocean, consequently playing a crucial role in the uptake of atmospheric …
Non-cyanobacterial diazotrophs: global diversity, distribution, ecophysiology, and activity in marine waters
Biological dinitrogen (N2) fixation supplies nitrogen to the oceans, supporting primary
productivity, and is carried out by some bacteria and archaea referred to as diazotrophs …
productivity, and is carried out by some bacteria and archaea referred to as diazotrophs …
Heterotrophic bacterial diazotrophs are more abundant than their cyanobacterial counterparts in metagenomes covering most of the sunlit ocean
Biological nitrogen fixation contributes significantly to marine primary productivity. The
current view depicts few cyanobacterial diazotrophs as the main marine nitrogen fixers …
current view depicts few cyanobacterial diazotrophs as the main marine nitrogen fixers …