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 …

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) …

Nutrient availability limits phytoplankton growth throughout much of the global ocean. Here
we synthesize available experimental data to identify three dominant nutrient limitation …

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 …

Pangenomes offer detailed characterizations of core and accessory genes found in a set of
closely related microbial genomes, generally by clustering genes based on sequence …

Iron is an essential nutrient that regulates productivity in~ 30% of the ocean. Compared with
deep (> 2000 meter) hydrothermal activity at mid-ocean ridges that provide iron to the …

We present a numerical model of the ocean that couples a three-stream radiative transfer
component with a marine biogeochemical–ecosystem component in a dynamic three …

Marine picocyanobacteria of the Prochlorococcus and Synechococcus genera have been
longtime considered as autotrophic organisms. However, compelling evidence published …

Traditionally, cyanobacterial activity in oceanic photic layers was considered responsible for
the marine pelagic dinitrogen (N2) fixation. Other potentially N2-fixing bacteria and archaea …

Despite the worldwide occurrence of marine hypoxic regions, benthic nitrogen (N) cycling
within these areas is poorly understood and it is generally assumed that these areas …