Biological nitrogen fixation (BNF) refers to a microbial mediated process based upon an
enzymatic “Nitrogenase” conversion of atmospheric nitrogen (N2) into ammonium readily …

Nitrogen (N) is used in many of life's fundamental biomolecules, and it is also a participant in
environmental redox chemistry. Biogeochemical processes control the amount and form of N …

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

In the Anthropocene, nitrogen pollution is becoming an increasing challenge for both
mankind and the Earth system. Microbial nitrogen cycling begins with aerobic nitrification …

Nitrogen fixation in the surface ocean impacts global marine nitrogen bioavailability and
thus microbial primary productivity. Until now, cyanobacterial populations have been viewed …

Freshwater cyanobacterial blooms have become ubiquitous, posing major threats to
ecological and public health. 2. Decades of research have focused on understanding drivers …

Microbial activity is a fundamental component of oceanic nutrient cycles. Photosynthetic
microbes, collectively termed phytoplankton, are responsible for the vast majority of primary …

Uncertainty in the global patterns of marine nitrogen fixation limits our understanding of the
response of the ocean's nitrogen and carbon cycles to environmental change. The …

A global assessment of precipitation chemistry and deposition has been carried out under
the direction of the World Meteorological Organization (WMO) Global Atmosphere Watch …

Cyanobacteria are the most ancient phytoplankton on the planet and form harmful algal
blooms in freshwater, estuarine, and marine ecosystems. Recent research suggests that …