The speciation of most biologically active trace metals in seawater is dominated by
complexation by organic ligands. This review traces the history of work in this area, from the …

Microeukaryotes (protists) serve fundamental roles in the marine environment as
contributors to biogeochemical nutrient cycling and ecosystem function. Their activities can …

Organic complexation of iron plays a crucial role in preventing its precipitation, facilitating its
transport, and modulating its reactivity and bioavailability in natural waters. Although humic …

Cross-feeding involves microbes consuming exudates of other surrounding microbes,
mediating elemental cycling. Characterizing the diversity of cross-feeding pathways in …

The euphotic zone of the surface ocean contains distinct physical-chemical regimes that
vary in light and nutrient concentrations as an inverse function of depth. The most numerous …

Nanoplastics (NPs) in wastewaters may present a potential threat to biological nitrogen
removal in constructed wetlands (CWs). Iron ions are pivotal in microbially mediated …

Via the photodegradation of dissolved iron (dFe) complexes in the euphotic zone, released
free Fe (III) is the most important source of bioavailable iron for eukaryotic phytoplankton …

Iron (Fe) governs the cycling of organic carbon in large parts of the Southern Ocean. The
strategies of diverse microbes to acquire the different chemical forms of Fe under seasonally …

The GEOTRACES program has greatly expanded measurements of dissolved trace metal
concentrations across ocean basins, but to understand the behavior and cycling of metals …

Supraglacial discharge of limiting micronutrients such as iron (Fe) into high-nutrient low-
chlorophyll (HNLC) regions like the Southern Ocean has recently drawn global attention. In …