Proteomics

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Dinoflagellates contribute to primary and secondary production across biogeochemical gradients of the central Pacific Ocean

ABSTRACT: In this study we explored the metabolism of unicellular eukaryotic organisms (protists) across a 4,600 km meridional transect in the central Pacific Ocean. The region contains a natural biogeochemical gradient spanning from low nitrogen, oligotrophic waters to a productive equatorial upwelling system. We used a combined geochemical and 'omic approach to characterize the metabolic strategies these organisms rely upon to adapt to changes in their chemical environment. Samples were collected using underwater pumps, capable of filtering hundreds of liters of seawater, from seven stations and 3-13 different depths spanning 20-1,900 m in the water column.

INSTRUMENT(S): Orbitrap Fusion

ORGANISM(S): Phytoplankton Environmental Sample

SUBMITTER: Matthew McIlvin  

LAB HEAD: Mak A. Saito

PROVIDER: PXD014230 | Pride | 2020-09-18

REPOSITORIES: Pride

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180514_metzyme_2D_3u_05ug_st1_200m.msf Msf
180514_metzyme_2D_3u_05ug_st1_200m.mzid.gz Mzid
180514_metzyme_2D_3u_05ug_st1_200m.mzid_180514_metzyme_2D_3u_05ug_st1_200m.MGF Mzid
180514_metzyme_2D_3u_05ug_st1_200m.mzid_180514_metzyme_2D_3u_05ug_st1_200m.pride.mgf.gz Mzid
180514_metzyme_2D_3u_05ug_st1_200m.pride.mztab.gz Mztab
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Publications

Dinoflagellates alter their carbon and nutrient metabolic strategies across environmental gradients in the central Pacific Ocean.

Cohen Natalie R NR   McIlvin Matthew R MR   Moran Dawn M DM   Held Noelle A NA   Saunders Jaclyn K JK   Hawco Nicholas J NJ   Brosnahan Michael M   DiTullio Giacomo R GR   Lamborg Carl C   McCrow John P JP   Dupont Chris L CL   Allen Andrew E AE   Saito Mak A MA  

Nature microbiology 20210104 2

Marine microeukaryotes play a fundamental role in biogeochemical cycling through the transfer of energy to higher trophic levels and vertical carbon transport. Despite their global importance, microeukaryote physiology, nutrient metabolism and contributions to carbon cycling across offshore ecosystems are poorly characterized. Here, we observed the prevalence of dinoflagellates along a 4,600-km meridional transect extending across the central Pacific Ocean, where oligotrophic gyres meet equatori  ...[more]

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