PXD016702 is an
original dataset announced via ProteomeXchange.
Dataset Summary
Title | Seamount sheath water: years-long retention of deep-ocean water traced by bacterioplankton |
Description | Seamounts, often rising hundreds of metres above the surrounding seafloor, obstruct the flow of deep-ocean water. While the resultant entrainment of deep-water by seamounts is predicted from ocean circulation models, its empirical validation has been hampered by the large scale and slow rate of the interaction. To overcome these limitations we use the growth of planktonic bacteria to assess the interaction rate. The selected study site, Tropic Seamount, in the North-Eastern Atlantic represents the majority of isolated seamounts, which do not affect the surface ocean waters. We prove deep-water is entrained by the seamount by measuring 2.3 times higher bacterial concentrations in the seamount-associated or ‘sheath’ water than in deep-ocean water unaffected by seamounts. Genomic analyses of the dominant sheath-water bacteria confirm their planktonic origin, whilst proteomic analyses indicate their slow growth. According to our radiotracer experiments, the doubling time of sheath-water bacterioplankton is 1.5 years. Therefore, for bacterioplankton concentration to reach 2.3 times higher in the ambient seawater, the seamount would need to retain deep-ocean water for more than 3.5 years. We propose that turbulent mixing of the retained sheath-water could stimulate bacterioplankton growth by increasing the cell encounter rate with the ambient dissolved organic molecules. If some of these molecules chelate hydroxides of iron and manganese, bacterioplankton consumption of the organic chelators would result in precipitation of insoluble hydroxides. Hence precipitated hydroxides would form ferromanganese deposits as a result of the bacterioplankton-mediated deep-water seamount interaction. |
HostingRepository | PRIDE |
AnnounceDate | 2024-10-22 |
AnnouncementXML | Submission_2024-10-22_05:06:09.615.xml |
DigitalObjectIdentifier | |
ReviewLevel | Peer-reviewed dataset |
DatasetOrigin | Original dataset |
RepositorySupport | Unsupported dataset by repository |
PrimarySubmitter | Minia Antelo |
SpeciesList | scientific name: unidentified marine bacterioplankton; NCBI TaxID: 13136; |
ModificationList | 6x(13)C labeled L-lysine; monohydroxylated residue |
Instrument | LTQ Orbitrap Elite |
Dataset History
Revision | Datetime | Status | ChangeLog Entry |
0 | 2019-12-11 05:55:10 | ID requested | |
1 | 2020-05-26 17:11:52 | announced | |
⏵ 2 | 2024-10-22 05:06:10 | announced | 2024-10-22: Updated project metadata. |
Publication List
Giljan G, Kamennaya NA, Otto A, Becher D, Ellrott A, Meyer V, Murton BJ, Fuchs BM, Amann RI, Zubkov MV, Bacterioplankton reveal years-long retention of Atlantic deep-ocean water by the Tropic Seamount. Sci Rep, 10(1):4715(2020) [pubmed] |
10.1038/s41598-020-61417-0; |
Keyword List
curator keyword: Biological |
submitter keyword: Seamount bacterioplankton |
ferromanganese encrusted guyot |
isotope-tracer bioassay |
in situ incubator |
flow cytometry |
flow sorted cell proteomics |
next generation sequencing |
Contact List
Dörte Becher |
contact affiliation | Institut für Mikrobiologie Universität Greifswald Felix Hausdorff Str.8 17489 Greifswald Tel.: (+49) 03834 420 5903 Fax.: (+49) 03834 420 5002 |
contact email | dbecher@uni-greifswald.de |
lab head | |
Minia Antelo |
contact affiliation | Institute of Microbiology University of Greifswald |
contact email | minia.antelovarela@uni-greifswald.de |
dataset submitter | |
Full Dataset Link List
Dataset FTP location
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PRIDE project URI |
Repository Record List
[ + ]
[ - ]
- PRIDE
- PXD016702
- Label: PRIDE project
- Name: Seamount sheath water: years-long retention of deep-ocean water traced by bacterioplankton