The ocean is home to a diverse and metabolically versatile microbial community that
performs the complex biochemical transformations that drive the nitrogen cycle, including …

Biological nitrogen (N 2) fixation is critical in global biogeochemical cycles and in sustaining
the productivity of the oceans. There remain many unanswered questions, unresolved …

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 …

Mutualism between Synechococcus and heterotrophic bacteria has been found to support
their prolonged survival in nutrient-depleted conditions. However, environmental …

The filamentous diazotrophic cyanobacterium Trichodesmium is responsible for a significant
fraction of marine di-nitrogen (N2) fixation. Growth and distribution of Trichodesmium and …

In the nitrogen-limited subtropical gyres, diazotrophic cyanobacteria, including
Crocosphaera, provide an essential ecosystem service by converting dinitrogen (N2) gas …

The N 2-fixing cyanobacterium Trichodesmium is an important player in the oceanic nitrogen
and carbon cycles. Trichodesmium occurs both as single trichomes and as colonies …

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 …

The availability of fixed nitrogen (N) is an important factor limiting biological productivity in
the oceans. In coastal waters, high dissolved inorganic N concentrations were historically …

Abstract Microplastics (MPs, diameter< 5 mm) are widely distributed on Earth, especially in
the oceans. Diatoms account for∼ 40% of marine primary productivity and affect the global …