Marine fixation of atmospheric nitrogen is believed to be an important source of biologically
useful nitrogen to ocean surface waters 1 , stimulating productivity of phytoplankton and so …

The conventional model of iron uptake in marine eukaryotic phytoplankton—the Fe′ model—suggests
a dependency of uptake rate on the concentration of unchelated iron species (Fe…

Harmful algal blooms (HABs) cause significant economic and ecological damage worldwide.
Despite considerable efforts, a comprehensive understanding of the factors that promote …

We quantified the relationships among the specific growth rate, intracellular iron content,
and steady state iron uptake rate for cultures of the marine diazotrophic cyanobacterium …

The centric diatom Thalassiosira pseudonana Hasle et Heimdal and the pennate diatom
Phaeodactylum tricornutum Bohlin possess genes with translated sequences homologous to …

Estimates of the iron use efficiency (IUE) for diazotrophic plant growth have been used to
suggest iron limitation of marine N 2 fixation. However, in the course of these inferences, …

We report the extracellular production of superoxide in cultures of the marine diatoms
Thalassiosira weissflogii and Thalassiosira pseudonana. In EDTA‐buffered media with ~45 pmol L …

Environmental fluctuations affect distribution, growth and abundance of diatoms in nature,
with iron (Fe) availability playing a central role. Studies on the response of diatoms to low Fe …

In vast areas of the ocean, the scarcity of iron controls the growth and productivity of
phytoplankton 1 , 2 . Although most dissolved iron in the marine environment is complexed with …

A synthesis of the current understanding of potential iron limitation of pelagic nitrogen fixation
is given, considering biochemical bases of Fe requirements and empirical observations of …