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ProteomicsRoss Sea Surface Water Metaproteomics
We sampled the microbial community at the sea ice edge in McMurdo Sound, Ross Sea at the same location (-77.62S, 165.41E) for four weeks (as described in Wu et al 2019, Nat. Comms.). We had four sampling dates corresponding to weeks 1 to 4: December 28 2014, January 6, 15, and 22 2015. Large volumes...
ORGANISM(S): marine plankton environmental sample 
2021-09-07 | PXD022995 | Pride
Phytoplankton 
ProteomicsStudy physiological and biochemical response of Phaeocystis antarctica to different irradiance and manganese/ iron deficiency
Iron and light are typically recognized as major limiting factors controlling phytoplankton growth in the Southern Ocean. Recent field-based evidence suggests, however, that manganese concentrations in this region can be low enough to impact phytoplankton physiology and primary productivity. Our stu...
ORGANISM(S): Phaeocystis antarctica 
2019-06-25 | PXD010974 | Pride
Manganese Photosynthesis Deprivation Phaeocystis antarctica Proteomic Iron 
ProteomicsMolecular and Physiological Acclimation to Low Light and Iron Scarcity in Globally Abundant Oceanic Pelagophyte
Pelagomonas calceolata is a widely distributed marine alga and is among the most numerous eukaryotes on Earth. It is abundant in subsurface chlorophyll maximum layer (SCML) communities where it can be responsible for a majority of nitrate assimilation. Growth in these communities is frequently limit...
ORGANISM(S): Pelagomonas calceolata 
2026-02-24 | PXD065159 | Pride
Iron and light limitation Proteome Pelagomonas calceolata 
ProteomicsNitrogen-fixation in the widely distributed model marine γ-proteobacterial diazotroph Candidatus Thalassolituus haligoni
The global significance of marine non-cyanobacterial diazotrophs, notably heterotrophic bacterial diazotrophs (HBDs), has become increasingly clear. Understanding N2 fixation rates for these largely uncultured organisms poses a challenge due to uncertain growth requirements and complex nitrogenase r...
ORGANISM(S): environmental samples <g-proteobacteria 
2024-08-10 | PXD045743 | Pride
Nitrogen-fixation Diazotroph Candidatus thalassolituus haligoni Proteome 
ProteomicsProteomic profiles of the Antarctic diatom Fragilariopsis cylindrus under varying iron and manganese conditions
Fragilariopsis cylindrus is an abundant diatom species in the Southern Ocean, where low iron and manganese availability constrain microbial growth and biogeochemical cycles. The molecular mechanisms used by polar diatoms including F. cylindrus to cope with trace metal limitations remain largely unex...
ORGANISM(S): Fragilariopsis cylindrus CCMP1102 
2026-05-25 | PXD067269 | Pride
Diatoms  phytoplankton Trace metals  southern ocean  dia 
ProteomicsPacific Ocean metaproteomics, METZYME KM1128
Global metaproteomic analyses of microbial biomass from the upper water column of the Central Pacific Ocean. This dataset was used as a discovery dataset to identify peptide biomarkers for cyanobacterial populations for use in targeted metaproteomic calibrated multiple reaction monitoring (MRM) anal...
ORGANISM(S): Environmental Samples (ncbitaxon:318178) 
2021-11-05 | MSV000088323 | MassIVE
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