Biological N2 fixation is an important part of the marine nitrogen cycle as it provides a source
of new nitrogen that can support biological carbon export and sequestration. Research in …

Planktonic, prokaryotic, and eukaryotic photoautotrophs (phytoplankton) share a diverse and
ancient evolutionary history, during which time they have played key roles in regulating …

In both marine and freshwaters, the concentration of dissolved organic nitrogen (DON)
frequently exceeds that of dissolved inorganic nitrogen (DIN), including ammonium, nitrate …

We present experimental laboratory evidence and field observations of an autocatalyzed,
programmed cell death (PCD) pathway in the nitrogen‐fixing cyanobacterium …

Zooplankton are critical to the vitality of estuaries and coastal waters. In this revised edition
of Johnson and Allen's instant classic, readers are taken on a tour of the miniature universe …

Diazotrophic (nitrogen‐fixing) cyanobacteria are important contributors of new nitrogen to
oligotrophic environments and greatly influence oceanic productivity. We investigated how …

Cyanobacteria of the genus Trichodesmium form extensive blooms that supply new N to
nutrient-poor marine ecosystems. Yet little is known about what eats Trichodesmium. In this …

Two methods used to measure dinitrogen (N 2) fixation (acetylene reduction and 15 N 2
uptake) often result in different N 2 fixation rates. Part of the discrepancy may arise from the …

Biological nitrogen fixation is a much more important process in the nitrogen cycle of the
oceans than previously thought. Further, nitrogen fixation may have an influence on the …

Recent evaluations of the global nitrogen budget include greatly increased estimates of N2-
fixation in oceanic waters. Low stable N isotope ratios in planktonic food webs of tropical …