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 …
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 …
[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 …
life in the global ocean. In 2012, the first version of the global oceanic diazotroph database …
Nutrient regulation of biological nitrogen fixation across the tropical western North Pacific
Nitrogen fixation is critical for the biological productivity of the ocean, but clear mechanistic
controls on this process remain elusive. Here, we investigate the abundance, activity, and …
controls on this process remain elusive. Here, we investigate the abundance, activity, and …
Siderophore production and utilization by marine bacteria in the North Pacific Ocean
Siderophores are strong iron‐binding molecules produced and utilized by microbes to
acquire the limiting nutrient iron (Fe) from their surroundings. Despite their importance as a …
acquire the limiting nutrient iron (Fe) from their surroundings. Despite their importance as a …
Petrobactin, a siderophore produced by Alteromonas, mediates community iron acquisition in the global ocean
It is now widely accepted that siderophores play a role in marine iron biogeochemical
cycling. However, the mechanisms by which siderophores affect the availability of iron from …
cycling. However, the mechanisms by which siderophores affect the availability of iron from …
Glycine betaine uptake and metabolism in marine microbial communities
Glycine betaine (GBT) is a compatible solute in high concentrations in marine
microorganisms. As a component of labile organic matter, GBT has complex biochemical …
microorganisms. As a component of labile organic matter, GBT has complex biochemical …
Cell-specific measurements show nitrogen fixation by particle-attached putative non-cyanobacterial diazotrophs in the North Pacific Subtropical Gyre
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 …
oceanic waters. Nitrogen-fixing (diazotrophic) cyanobacteria are believed to be the primary …
The dynamic trophic architecture of open-ocean protist communities revealed through machine-guided metatranscriptomics
BS Lambert, RD Groussman… - Proceedings of the …, 2022 - National Acad Sciences
Intricate networks of single-celled eukaryotes (protists) dominate carbon flow in the ocean.
Their growth, demise, and interactions with other microorganisms drive the fluxes of …
Their growth, demise, and interactions with other microorganisms drive the fluxes of …
Microevolutionary patterns in ecotypes of the symbiotic cyanobacterium UCYN-A revealed from a Northwest Atlantic coastal time series
UCYN-A is a globally important nitrogen-fixing symbiotic microbe often found in colder
regions and coastal areas where nitrogen fixation has been overlooked. We present a 3 …
regions and coastal areas where nitrogen fixation has been overlooked. We present a 3 …