The bioavailability of iron to microorganisms and its underlying mechanisms have far
reaching repercussions to many natural systems and diverse fields of research, including …

Higher plant roots, leaf mesophyll tissue, protoplasts as well as green algae are able to
reduce extra-cellular ferricyanide and ferric chelates. In roots of dicotyledonous and …

Despite the usually high abundance of iron (Fe) in soils, the low solubility of Fe-bearing
minerals restricts the available Fe pools in most aerobic soils to levels that are far below …

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 …

Phytoplankton are often limited by iron in aquatic environments. Here we examine Fe
bioavailability to phytoplankton by analyzing iron uptake from various Fe substrates by …

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

The uptake of 59 Fe from FeCl 3, ferric (Fe 3+) citrate (FeCitr) and Fe 3+-EDTA (FeEDTA)
was studied in leaf mesophyll of Vigna unguiculata (L.) Walp. Uptake rates decreased in the …

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

Metal ions have critical functions in biological processes and provided important biological
feedbacks with the environment throughout earth history. For example, Fe, Ni, Mg, Mn, Mo …

Interactions with the bacterial community are increasingly considered to have a significant
influence on marine phytoplankton populations. Here we used a simplified dinoflagellate …