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Organic carbon in seawater plays a significant role in the global carbon cycle. The concentration and composition of dissolved organic carbon, operationally defined in this project as organic carbon that passes through a 0.2 µm filter, reflect the actions of the biological community and chemical ...

2022-02-09 | MTBLS2356 | MetaboLights

Metabolites, or the small organic molecules that are synthesized by cells during metabolism, comprise a complex and dynamic pool of carbon in the ocean. They are an essential form of information, linking genotype to phenotype at the individual, population and community levels of biological organi...

2021-08-27 | MTBLS1752 | MetaboLights

Deep-sea hydrothermal vents are unique ecosystems that may release chemically distinct dissolved organic matter to the deep ocean. Here, we describe the composition and concentrations of polar dissolved organic compounds observed in low and high temperature hydrothermal vent fluids at 9°50′N on t...

2017-05-23 | MTBLS428 | MetaboLights

Sulfur (S) is a major heteroatom in organic matter. This project evaluated spatial variability in the concentration and molecular-level composition of organic sulfur along gradients of depth and latitude. We measured the concentration of total organic sulfur (TOS) directly from whole seawater. Ou...

2019-11-12 | MTBLS1024 | MetaboLights

RATIONALE: Marine dissolved organic matter (DOM) has long been recognized as a large and dynamic component of the global carbon cycle. Yet, DOM is chemically varied and complex and these attributes present challenges to researchers interested in addressing questions about the rol...

2016-10-31 | MTBLS366 | MetaboLights

Untargeted features from the Bermuda Atlantic Time-series Study (BATS) site collected during the time period spanning 2016 to 2019. Metabolites were sampled from surface seawater to 1000 m deep and throughout the year. Dissolved organic matter extracts were analyzed in positive and negative ion m...

2024-02-28 | MTBLS5228 | MetaboLights

Particulate organic matter (fecal pellets) from zooplankton has been demonstrated to be important nutrient sources for the pelagic prokaryotic community. Significantly less is known about the chemical composition of the dissolved organic matter (DOM) produced by these eukaryotes and its infl...

2020-11-27 | MTBLS1822 | MetaboLights
Phytoplankton are known to release organic compounds that fuel secondary production by heterotrophic bacteria. Here we show that an abundant marine cyanobacterium, Synechococcus elongatus, contributes a variety of nitrogen-rich and sulfur-containing compounds to dissolved organic matter. A combinati...
2015-01-26 | MTBLS155 | MetaboLights
In aquatic environments, the production and consumption of organic compounds is directly tied to the metabolic potential of the in situ microbial community. The community’s metabolic potential can be assessed using metatranscriptomics, which is a measure of gene expression in the environment. More r...
2016-01-14 | MTBLS293 | MetaboLights
Marine picocyanobacteria Prochlorococcus and Synechococcus, the most abundant photosynthetic cells in the oceans, are generally thought to have a primarily single-celled and free-living lifestyle. However, while studying the ability of picocyanobacteria to supplement photosynthetic car...
2024-02-21 | MTBLS5229 | MetaboLights
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