The marine nitrogen cycle: new developments and global change

DA Hutchins, DG Capone - Nature Reviews Microbiology, 2022 - nature.com
The ocean is home to a diverse and metabolically versatile microbial community that
performs the complex biochemical transformations that drive the nitrogen cycle, including …

Changing perspectives in marine nitrogen fixation

JP Zehr, DG Capone - Science, 2020 - science.org
BACKGROUND Biological dinitrogen (N2) fixation, the reduction of atmospheric N2 to
ammonia, is important for maintaining the fertility of the oceans by providing biologically …

Around one third of current Arctic Ocean primary production sustained by rivers and coastal erosion

J Terhaar, R Lauerwald, P Regnier, N Gruber… - Nature …, 2021 - nature.com
Net primary production (NPP) is the foundation of the oceans' ecosystems and the fisheries
they support. In the Arctic Ocean, NPP is controlled by a complex interplay of light and …

Global nitrogen cycle: critical enzymes, organisms, and processes for nitrogen budgets and dynamics

X Zhang, BB Ward, DM Sigman - Chemical reviews, 2020 - ACS Publications
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 …

[HTML][HTML] Global oceanic diazotroph database version 2 and elevated estimate of global oceanic N fixation

Z Shao, Y Xu, H Wang, W Luo, L Wang… - Earth System …, 2023 - essd.copernicus.org
Marine diazotrophs convert dinitrogen (N 2) gas into bioavailable nitrogen (N), supporting
life in the global ocean. In 2012, the first version of the global oceanic diazotroph database …

Nitrous oxide emission in altered nitrogen cycle and implications for climate change

B Aryal, R Gurung, AF Camargo, G Fongaro… - Environmental …, 2022 - Elsevier
Natural processes and human activities play a crucial role in changing the nitrogen cycle
and increasing nitrous oxide (N 2 O) emissions, which are accelerating at an unprecedented …

Nitrogen-fixing organelle in a marine alga

TH Coale, V Loconte, KA Turk-Kubo, B Vanslembrouck… - Science, 2024 - science.org
Symbiotic interactions were key to the evolution of chloroplast and mitochondria organelles,
which mediate carbon and energy metabolism in eukaryotes. Biological nitrogen fixation, the …

Diazotrophs are overlooked contributors to carbon and nitrogen export to the deep ocean

S Bonnet, M Benavides, FAC Le Moigne… - The ISME …, 2023 - academic.oup.com
Diazotrophs are widespread microorganisms that alleviate nitrogen limitation in 60% of our
oceans, thereby regulating marine productivity. Yet, the group-specific contribution of …

Processes and microorganisms involved in the marine nitrogen cycle: knowledge and gaps

S Pajares, R Ramos - Frontiers in Marine Science, 2019 - frontiersin.org
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 …

Non-cyanobacterial diazotrophs: global diversity, distribution, ecophysiology, and activity in marine waters

KA Turk-Kubo, MR Gradoville, S Cheung… - FEMS microbiology …, 2023 - academic.oup.com
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 …