Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

DOM_SouthernOcean_NTA_LC-HRMS_DDA_Eclipse

ABSTRACT: Marine dissolved organic matter from Southern Ocean. Samples were analyzed by LC-MS/MS in positive and negative electrospray ionization mode using DDA (Orbitrap Eclipse).

INSTRUMENT(S): Orbitrap Eclipse

ORGANISM(S): Environmental Samples <bacillariophyta> (ncbitaxon:33858)

SUBMITTER: Jordi Dachs Maria Vila Costa Pablo Gago Ferrero

PROVIDER: MSV000095697 | MassIVE | Mon Aug 26 07:26:00 BST 2024

REPOSITORIES: MassIVE

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

DOM_AtlanticOcean_NTA_LC-HRMS_DDA_Eclipse

Project description:Marine dissolved organic matter from the Atlantic Ocean. Samples were analyzed by LC-MS/MS in positive and negative electrospray ionization mode using DDA (Orbitrap Eclipse).

2024-10-01 | MSV000096004 | MassIVE

GNPS - DOM_SouthernOcean_NTA_LC-HRMS_DDA_Eclipse

Project description:Marine dissolved organic matter from Southern Ocean. Samples were analyzed by LC-MS/MS in positive and negative electrospray ionization mode using DDA (Orbitrap Eclipse).

2024-08-26 | MSV000095697 | GNPS

GNPS - DOM_AtlanticOcean_NTA_LC-HRMS_DDA_Eclipse

Project description:Marine dissolved organic matter from the Atlantic Ocean. Samples were analyzed by LC-MS/MS in positive and negative electrospray ionization mode using DDA (Orbitrap Eclipse).

2024-10-01 | MSV000096004 | GNPS

Proteome compendium of the Antarctic krill (Euphausia superba) - Muscle

Project description:The Antarctic krill provides central ecosystems services to the Southern Ocean grazing on autotroph and heterotoph diet and constituting the dominant food source for higher trophic levels. Moreover, E. superba's extensive equipment with biomacromolecule hydrolysing enzymes represents a largely untapped resource for applied purposes. The proteome compendium of krill provides a valuable basis for future studies on krill biology (e.g., metabolism, development, migration behaviour), for krill's contribution to organic matter turnover in the Southern Ocean, as well as for multilevel biotechnological prospecting.

2022-09-28 | PXD033601 | Pride

Proteome compendium of the Antarctic krill (Euphausia superba) - Carapace

2022-09-28 | PXD033594 | Pride

Proteome compendium of the Antarctic krill (Euphausia superba) - Whole body

2022-09-28 | PXD033602 | Pride

Proteome compendium of the Antarctic krill (Euphausia superba) - Head

2022-09-28 | PXD033597 | Pride

Proteome compendium of the Antarctic krill (Euphausia superba) - Telson

2022-09-28 | PXD033775 | Pride

Analysis of sulfur-related transcription by Roseobacter communities using a taxon-specific functional gene microarray

Project description:The fraction of dissolved dimethylsulfoniopropionate (DMSPd) converted by marine bacterioplankton into the climate-active gas dimethylsulfide (DMS) varies widely in the ocean, with the factors that determine this value still largely unknown. One current hypothesis is that the ratio of DMS formation:DMSP demethylation is determined by DMSP availability, with 'availability' in both an absolute sense (i.e., concentration in seawater) and in a relative sense (i.e., proportionally to other labile organic S compounds) being proposed as the critical factor. We investigated these models during an experimentally-induced phytoplankton bloom using an environmental microarray targeting DMSP-related gene expression in the Roseobacter group, a taxon of marine bacteria known to play an important role in the surface ocean sulfur cycle. The array consisted of 1,578 probes to 431 genes, including those previously linked to DMSP degradation as well as core genes common in sequenced Roseobacter genomes. The prevailing pattern of Roseobacter gene expression showed depletion of DMSP-related transcripts during the peak of the bloom, despite the fact that absolute concentrations and flux of DMSP-related compounds were increasing. A likely interpretation is that DMSPd was assimilated by Roseobacter populations in proportion to its relative abundance in the organic matter pool (the “relative sense” hypothesis), and that it is not taken up in preference to other sources of labile organic sulfur or carbon produced during the bloom. The relative investment of the Roseobacter community in DMSP demethylation did not predict the fractional conversion of DMSP to DMS, however, suggesting a complex regulatory process that may involve multiple fates of DMSPd.

2010-08-05 | GSE21325 | GEO

Using network analysis to discern compositional patterns in ultrahigh resolution mass spectrometry data of dissolved organic matter

Project description: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 role of DOM in global biogeochemical cycles.METHODS: Organic matter extracts from seawater were analyzed by direct infusion with electrospray ionization into a Fourier transform ion cyclotron resonance mass spectrometer. Network analysis was used to quantify the number of chemical transformations between mass-to-charge values in each sample. The network of chemical transformations was calculated using the MetaNetter plug-in within Cytoscape. The chemical transformations serve as markers for the shared structural characteristics of compounds within complex DOM.RESULTS: Network analysis revealed that transformations involving selected sulfur-containing moieties and isomers of amino acids were more prevalent in the deep sea than in the surface ocean. Common chemical transformations were not significantly different between the deep sea and surface ocean. Network analysis complements existing computational tools used to analyze ultrahigh-resolution mass spectrometry data.CONCLUSIONS: This combination of ultrahigh-resolution mass spectrometry with novel computational tools has identified new potential building blocks of organic compounds in the deep sea, including the unexpected importance of dissolved organic sulfur components. The method described here can be readily applied by researchers to analyze heterogeneous and complex DOM.

2016-10-31 | MTBLS366 | MetaboLights

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data