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MetabolomicsA metabolomics exploration of the sexual phase in the marine diatom Pseudo-nitzschia multistriata
Pseudo-nitzschia multistriata is a planktonic diatom species with a diplontic life cycle comprising a short sexual phase during which gametes are produced from the encounter of two diploid cells of opposite mating type (MT). Gene expression studies have highlighted the presence of substantial change...
2020-06-29 | MTBLS1714 | MetaboLights
MetabolomicsGrazer-induced transcriptomic and metabolomic response of the chain-forming diatom Skeletonema marinoi
Diatoms and copepods are main actors in marine food webs. The prey-predator interactions between them affect bloom dynamics, shape marine ecosystems and impact the energy transfer to higher trophic levels. Recently it has been demonstrated that the presence of grazers may affect the diatom prey beyo...
2018-10-23 | MTBLS571 | MetaboLights
MetabolomicsResource Partitioning of Diatom Metabolites that Support Bacterial Heterotrophy in the Ocean (NMR assay)

The communities of marine bacteria that assemble around living microphytoplankton are predictably dominated by three taxonomic groups, each of which specializes in the use or transport of different components of the available metabolite pool: Rhodobacterales transport small and polar metabolites,...

2020-09-15 | MTBLS1544 | MetaboLights
MetabolomicsResource Partitioning of Diatom Metabolites that Support Bacterial Heterotrophy in the Ocean (UPLC-MS assay)

The communities of marine bacteria that assemble around living microphytoplankton are predictably dominated by three taxonomic groups, each of which specializes in different components of the available metabolite pool: Rhodobacterales transport small and polar metabolites, Flavobacteriia use carb...

2020-09-15 | MTBLS1751 | MetaboLights
MetabolomicsHidden molecular clues in marine sediments revealed by untargeted mass spectrometry imaging

Mass spectrometry imaging (MSI) in sedimentary archives can produce records of molecular proxies at μm-scale resolution. For example, in annually varved sediments of the Santa Barbara Basin, such a fine resolution allows deciphering sub-annual distributions of archaeal tetraether lipids, haptophy...

2022-08-15 | MTBLS4609 | MetaboLights
TranscriptomicsTranscriptional response of the marine pennate diatom Phaeodactylum tricornutum to Fe limitation
Diatoms, which are responsible for up to 40% of the 45 to 50 billion metric tons of organic carbon production each year in the sea, are particularly sensitive to Fe stress. Here we describe the transcriptional response of the pennate diatom Phaeodactylum tricornutum to Fe limitation using a partial ...
ORGANISM(S): Phaeodactylum tricornutum 
2010-05-27 | E-GEOD-8675 | biostudies-arrayexpress
MetabolomicsMarine metabolomics: measurement of metabolites in seawater by gas chromatography mass spectrometry (Cell culture sampling)

One of the major bottlenecks in describing marine ecosystems is characterizing the metabolome of seawater, as salt prevents metabolite analysis. We present SeaMet, a method that can detect hundreds of metabolites in less than one ml of seawater and quantifies them down to nano-molar levels using ...

2019-11-15 | MTBLS843 | MetaboLights
MetabolomicsThe metabolic response of marine copepods to environmental warming and ocean acidification in the absence of food
Marine copepods are central to the productivity and biogeochemistry of marine ecosystems. Nevertheless, the direct and indirect effects of climate change on their metabolic functioning remain poorly understood. Here, we use metabolomics, the unbiased study of multiple low molecular weight organic me...
2015-10-13 | MTBLS91 | MetaboLights
TranscriptomicsSystem responses to equal doses of photosynthetically usable radiation of blue, green, and red light in the marine diatom Phaeodactylum tricornutum.
We have studied the transcriptional, metabolic and photo-physiological responses to light of different spectral quality in the marine diatom Phaeodactylum tricornutum through time-series studies of cultures exposed to equal doses of photosynthetically usable radiation of blue, green and red light. T...
ORGANISM(S): Phaeodactylum tricornutum 
2014-12-22 | E-GEOD-55959 | biostudies-arrayexpress
MetabolomicsPhosphorus availability regulates intracellular nucleotides in marine eukaryotic phytoplankton
Phosphorus limitation is pervasive in the oligotrophic surface ocean and marine microorganisms use different strategies to survive, and thrive, at these low nutrient levels. Eukaryotic algae such as diatoms are extremely sensitive to phosphorus limitation and recent transcriptomics work has suggeste...
2015-01-27 | MTBLS154 | MetaboLights
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