Nitrogen fixing plankton provide nitrogen to fuel marine ecosystems and biogeochemical
cycles but the factors that constrain their growth and habitat remain poorly understood. Here …

The ability of marine diazotrophs to fix dinitrogen gas (N2) is one of the most influential yet
enigmatic processes in the ocean. With their activity diazotrophs support biological …

Crocosphaera watsonii (hereafter referred to as Crocosphaera) is a key nitrogen (N) fixer in
the ocean, but its ability to consume combined-N sources is still unclear. Using in situ …

Biological dinitrogen (N2) fixation is performed solely by specialized bacteria and archaea
termed diazotrophs, introducing new reactive nitrogen into aquatic environments …

Biological N2 fixation is the dominant supply of new nitrogen (N) to the oceans, but is often
inhibited in the presence of fixed N sources such as nitrate (NO3−). Anthropogenic fixed N …

Marine non-cyanobacterial diazotrophs are widespread in the ocean and can be the
dominant nitrogen (N) fixers in certain regions. Lagging behind distribution and diversity …

The biological fixation of dinitrogen (N2) by marine microbes called “diazotrophs” sustains∼
50% new production in the ocean, boosting CO2 absorption by photoautotrophs and thus …

The recent detection of heterotrophic nitrogen (N2) fixation in deep waters of the southern
Californian and Peruvian OMZ questions our current understanding of marine N2 fixation as …

Biological dinitrogen (N 2) fixation is the major source of new nitrogen (N) for the open
ocean, and thus promotes marine productivity, in particular in the vast N-depleted regions of …

Biological dinitrogen (N 2) fixation is a key metabolic process exclusively performed by
prokaryotes, some of which are symbiotic with eukaryotes. Species of the marine haptophyte …