Chemical and spectroscopic characterization of marine dissolved organic matter isolated using coupled reverse osmosis–electrodialysis

Isolation and Characterization of Bacteria That Degrade Phosphonates in Marine Dissolved Organic Matter

Semi-labile dissolved organic matter (DOM) accumulates in surface waters of the oligotrophic ocean gyres and turns over on seasonal to annual timescales. This reservoir of DOM represents an important source of carbon, energy, and nutrients to marine microbial communities but the identity of the microorganisms and the biochemical pathways underlying the cycling of DOM remain largely uncharacteri...

Characterization of methyl-, 3-deoxy-, and methyl-deoxysugars in marine high molecular weight dissolved organic matter

Depth-dependent photodegradation of marine dissolved organic matter

1 Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA, USA, 2 Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, USA, 3 Department of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, USA, 4 Bermuda Institute of Ocean Sciences, St. George’s, Bermuda, 5 Ecosystems Center, Marine Biological Laborat...

Experimental Evidence for Abiotic Sulfurization of Marine Dissolved Organic Matter

Dissolved organic sulfur (DOS) is the largest pool of organic sulfur in the oceans, and as such it is an important component of the global sulfur cycle. DOS in the ocean is resistant against microbial degradation and turns over on a millennium time scale. However, sources and mechanisms behind its stability are largely unknown. Here, we hypothesize that in sulfate-reducing sediments sulfur is a...

Microbial Community Structure Affects Marine Dissolved Organic Matter Composition

Marine microbes are critical players in the global carbon cycle, affecting both the reduction of inorganic carbon and the remineralization of reduced organic compounds back to carbon dioxide. Members of microbial consortia all depend on marine dissolved organic matter (DOM) and in turn, affect the molecules present in this heterogeneous pool. Our understanding of DOM produced by marine microbes...