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(Figure 3) Changes of IPLs in subsurface sediments from IODP Expedition 311, Cascadia Margin, under different storage conditions (2010)

Lin, Yu-Shih ; Biddle, Jennifer F ; Lipp, Julius S ; [weitere]

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Publikationsdatum: 2023-06-27

Schlagwort(e): 311-U1326D; 311-U1327C; 311-U1328C; Archaeal intact polar lipids; Bacterial intact polar lipids; Cascadia Margin Gas Hydrates; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Elevation of event; Event label; Exp311; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Latitude of event; Longitude of event; see reference(s); Standard deviation; Treatment

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Format: text/tab-separated-values, 40 data points

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Oxygen contents, sulfate concentrations, and changes of IPLs under different storage conditions of samples from ODP Leg 204 and IODP Expedition 311 (2010)

Lin, Yu-Shih ; Biddle, Jennifer F ; Lipp, Julius S ; [weitere]

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In: Supplement to: Lin, Yu-Shih; Biddle, Jennifer F; Lipp, Julius S; Orcutt, B; Holler, Thomas; Teske, Andreas P; Hinrichs, Kai-Uwe (2010): Effect of storage conditions on archaeal and bacterial communities in subsurface marine sediments. Geomicrobiology Journal, 27, 261-272, https://doi.org/10.1080/01490450903410423

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Publikationsdatum: 2024-01-09

Beschreibung: We have studied the effects of slow infiltration of oxygen on microbial communities in refrigerated legacy samples from ocean drilling expeditions. Storage was in heat-sealed, laminated foil bags with a N2 headspace for geomicrobiological studies. Analysis of microbial lipids suggests that Bacteria were barely detectable in situ but increased remarkably during storage. Detailed molecular examination of a methane-rich sediment horizon showed that refrigeration triggered selective growth of ANME-2 archaea and a drastic change in the bacterial community. Subsequent enrichment targeting methanogens yielded exclusively methylotrophs, which were probably selected for by high sulfate levels caused by oxidation of reduced sulfur species. We provide recommendations for sample storage in future ocean drilling expeditions.

Schlagwort(e): 204-1249; 204-1249F; 204-1250; 204-1250E; 204-1251; 204-1251E; 311-U1325B; 311-U1326D; 311-U1327C; 311-U1328B; 311-U1328C; 311-U1329C; Cascadia Margin Gas Hydrates; Center for Marine Environmental Sciences; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Exp311; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Leg204; MARUM; North Pacific Ocean; Ocean Drilling Program; ODP

Materialart: Dataset

Format: application/zip, 5 datasets

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Water-extractable DOC batch measurements of dives 4567 (core 27) and 4568 (core 1) (Fig. 1a) (2020)

Lin, Yu-Shih ; Koch, Boris P ; Feseker, Tomas ; [weitere]

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Publikationsdatum: 2024-03-07

Schlagwort(e): 4567; 4568; ALVIN; AT15-56; AT15-56_4567; AT15-56_4568; Atlantis (1997); Batch extraction with artificial seawater; Carbon, organic, dissolved; DEPTH, sediment/rock; Dissolved Organic Carbon; Dissolved Organic Matter; Event label; FTICRMS; Guaymas Basin; Submersible Alvin; total hydrolyzable dissolved amino acids

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Format: text/tab-separated-values, 13 data points

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(Table S9) Isotopic composition of IODP Hole 301-U1301B (2013)

Lever, Mark A ; Rouxel, Olivier J ; Alt, Jeffrey C ; [weitere]

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In: Supplement to: Lever, Mark A; Rouxel, Olivier J; Alt, Jeffrey C; Shimizu, Nobumichi; Ono, Shuhei; Coggon, Rosalind M; Shanks, Wayne C; Lapham, Laura; Elvert, Marcus; Prieto-Mollar, Xavier; Hinrichs, Kai-Uwe; Inagaki, Fumio; Teske, Andreas P (2013): Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt. Science, 339(6125), 1305-1308, https://doi.org/10.1126/science.1229240

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Publikationsdatum: 2024-02-12

Beschreibung: Sediment-covered basalt on the flanks of mid-ocean ridges constitutes most of Earth's oceanic crust, but the composition and metabolic function of its microbial ecosystem are largely unknown. By drilling into 3.5-million-year-old subseafloor basalt, we demonstrated the presence of methane- and sulfur-cycling microbes on the eastern flank of the Juan de Fuca Ridge. Depth horizons with functional genes indicative of methane-cycling and sulfate-reducing microorganisms are enriched in solid-phase sulfur and total organic carbon, host d13C- and d34S-isotopic values with a biological imprint, and show clear signs of microbial activity when incubated in the laboratory. Downcore changes in carbon and sulfur cycling show discrete geochemical intervals with chemoautotrophic d13C signatures locally attenuated by heterotrophic metabolism.

Schlagwort(e): 301-U1301B; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Exp301; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Juan de Fuca Hydrogeology; Mass spectrometer Finnigan Delta Plus XP; Replicate; Sample code/label; Treatment; δ13C, methane

Materialart: Dataset

Format: text/tab-separated-values, 28 data points

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