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 …
Marine non-cyanobacterial diazotrophs: moving beyond molecular detection
The nitrogen input through biological N 2 fixation is essential for life in vast areas of the
global ocean. The belief is that cyanobacteria are the only relevant N 2-fixing (diazotrophic) …
global ocean. The belief is that cyanobacteria are the only relevant N 2-fixing (diazotrophic) …
Nitrogenase gene amplicons from global marine surface waters are dominated by genes of non-cyanobacteria
Cyanobacteria are thought to be the main N2-fixing organisms (diazotrophs) in marine
pelagic waters, but recent molecular analyses indicate that non-cyanobacterial diazotrophs …
pelagic waters, but recent molecular analyses indicate that non-cyanobacterial diazotrophs …
Aerobic and anaerobic nitrogen transformation processes in N2-fixing cyanobacterial aggregates
Colonies of N2-fixing cyanobacteria are key players in supplying new nitrogen to the ocean,
but the biological fate of this fixed nitrogen remains poorly constrained. Here, we report on …
but the biological fate of this fixed nitrogen remains poorly constrained. Here, we report on …
Nitrogenase genes in non-cyanobacterial plankton: prevalence, diversity and regulation in marine waters
Marine waters are generally considered to be nitrogen (N) limited and are therefore
favourable environments for diazotrophs, ie organisms converting atmospheric N 2 into …
favourable environments for diazotrophs, ie organisms converting atmospheric N 2 into …
Significant N2 fixation by heterotrophs, photoheterotrophs and heterocystous cyanobacteria in two temperate estuaries
Nitrogen (N) fixation is fueling planktonic production in a multitude of aquatic environments.
In meso-and poly-haline estuaries, however, the contribution of N by pelagic N2 fixation is …
In meso-and poly-haline estuaries, however, the contribution of N by pelagic N2 fixation is …
Active nitrogen-fixing heterotrophic bacteria at and below the chemocline of the central Baltic Sea
Abstract The Baltic Sea receives large nitrogen inputs by diazotrophic (N2-fixing)
heterocystous cyanobacteria but the significance of heterotrophic N2 fixation has not been …
heterocystous cyanobacteria but the significance of heterotrophic N2 fixation has not been …
Untangling hidden nutrient dynamics: rapid ammonium cycling and single-cell ammonium assimilation in marine plankton communities
Ammonium is a central nutrient in aquatic systems. Yet, cell-specific ammonium assimilation
among diverse functional plankton is poorly documented in field communities. Combining …
among diverse functional plankton is poorly documented in field communities. Combining …
Nitrogen fixation and nitrogenase (nifH) expression in tropical waters of the eastern North Atlantic
Expression of nifH in 28 surface water samples collected during fall 2007 from six stations in
the vicinity of the Cape Verde Islands (north-east Atlantic) was examined using reverse …
the vicinity of the Cape Verde Islands (north-east Atlantic) was examined using reverse …
Diversity and activity of alternative nitrogenases in sequenced genomes and coastal environments
The nitrogenase enzyme, which catalyzes the reduction of N2 gas to NH4+, occurs as three
separate isozyme that use Mo, Fe-only, or V. The majority of global nitrogen fixation is …
separate isozyme that use Mo, Fe-only, or V. The majority of global nitrogen fixation is …