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 …

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 …

Phylogenetically and catabolically diverse diazotrophs reside in deep-sea cold seep sediments

X Dong, C Zhang, Y Peng, HX Zhang, LD Shi… - Nature …, 2022 - nature.com
Microbially mediated nitrogen cycling in carbon-dominated cold seep environments remains
poorly understood. So far anaerobic methanotrophic archaea (ANME-2) and their sulfate …

[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 …

Overlooked and widespread pennate diatom-diazotroph symbioses in the sea

CR Schvarcz, ST Wilson, M Caffin, R Stancheva… - Nature …, 2022 - nature.com
Persistent nitrogen depletion in sunlit open ocean waters provides a favorable ecological
niche for nitrogen-fixing (diazotrophic) cyanobacteria, some of which associate symbiotically …

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 …

Heterotrophic bacterial diazotrophs are more abundant than their cyanobacterial counterparts in metagenomes covering most of the sunlit ocean

TO Delmont, JJ Pierella Karlusich, I Veseli… - The ISME …, 2022 - academic.oup.com
Biological nitrogen fixation contributes significantly to marine primary productivity. The
current view depicts few cyanobacterial diazotrophs as the main marine nitrogen fixers …

Understanding the risks of diffusion of cyanobacteria toxins in rivers, lakes, and potable water

AM Thawabteh, HA Naseef, D Karaman, SA Bufo… - Toxins, 2023 - mdpi.com
Blue-green algae, or cyanobacteria, may be prevalent in our rivers and tap water. These
minuscule bacteria can grow swiftly and form blooms in warm, nutrient-rich water. Toxins …

Temperature dependence of parasitoid infection and abundance of a diatom revealed by automated imaging and classification

D Catlett, EE Peacock, ET Crockford… - Proceedings of the …, 2023 - National Acad Sciences
Diatoms are a group of phytoplankton that contribute disproportionately to global primary
production. Traditional paradigms that suggest diatoms are consumed primarily by larger …

Cell-specific measurements show nitrogen fixation by particle-attached putative non-cyanobacterial diazotrophs in the North Pacific Subtropical Gyre

KJ Harding, KA Turk-Kubo, EWK Mak, PK Weber… - Nature …, 2022 - nature.com
Biological nitrogen fixation is a major important source of nitrogen for low-nutrient surface
oceanic waters. Nitrogen-fixing (diazotrophic) cyanobacteria are believed to be the primary …