Polysaccharides are major components of macroalgal and phytoplankton biomass and
constitute a large fraction of the organic matter produced and degraded in the ocean. Until …

In Arctic marine bacterial communities, members of the phylum Verrucomicrobia are
consistently detected, although not typically abundant, in 16S rRNA gene clone libraries and …

Extracellular enzymes produced by heterotrophic microbial communities are major drivers of
carbon and nutrient cycling in terrestrial, freshwater, and marine environments. Although …

Heterotrophic microbial communities play a central role in the marine carbon cycle. They are
active in nearly all known environments, from the surface to the deep ocean, in the …

We compared the function and composition of free-living and particle-associated microbial
communities at an inshore site in coastal North Carolina and across a depth profile on the …

Aggregates generated in the laboratory from incubations of seawater and surface-water oil
collected in the initial phase of the Deepwater Horizon oil spill resemble the oil-aggregates …

Heterotrophic microbes initiate the degradation of high molecular weight organic matter
using extracellular enzymes. Our understanding of differences in microbial enzymatic …

Oceanic bacterial communities process a major fraction of marine organic carbon. A
substantial portion of this carbon transformation occurs in the mesopelagic zone, and a …

The reservoir of dissolved organic carbon (DOC) in the ocean is modified by multiple input
and removal processes. Incubation experiments as well as measurements of oceanic DOC …

Microbial chemosynthesis within deep-sea hydrothermal vent plumes is a regionally
important source of organic carbon to the deep ocean. Although chemolithoautotrophs …