Authigenic carbonates at cold seeps in the Marmara Sea (Turkey): A lipid biomarker and stable carbon and oxygen isotope investigation

Chevalier, Nicolas; Bouloubassi, Ioanna; Birgel, Daniel; Crémière, Antoine; Taphanel, Marie-Hélène; Cartigny, Pierre

doi:10.1016/j.margeo.2011.08.005

Cited by 46 publications

(41 citation statements)

References 92 publications

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“…Besides these sulfate reducers, 10MeC 16:0 FA is also occasionally, but generally in much smaller amounts, found in other bacteria; the literature reports its presence in several actinobacteria (6,12,23,31,41,56,58), in anammox bacteria and other planctomycetes (48,49), in an iron-reducing Geobacter species (34,57), in a Marinobacter species (55), and in the marine denitrifier Pseudomonas nautica (14). Several studies report the presence of 10MeC 16:0 FA in relation to the occurrence of anaerobic methane oxidation (AOM) coupled to sulfate reduction (1,2,7,17,26,39). One study on the methane-oxidizing community in landfill cover soils reports remarkably large amounts of 10MeC 16:0 FA of up to 16% of the total extracted phospholipid fatty acids.…”

Section: Discussionmentioning

confidence: 99%

Rare Branched Fatty Acids Characterize the Lipid Composition of the Intra-Aerobic Methane Oxidizer “Candidatus Methylomirabilis oxyfera”

Kool

Zhu

Rijpstra

et al. 2012

Appl Environ Microbiol

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bThe recently described bacterium "Candidatus Methylomirabilis oxyfera" couples the oxidation of the important greenhouse gas methane to the reduction of nitrite. The ecological significance of "Ca. Methylomirabilis oxyfera" is still underexplored, as our ability to identify the presence of this bacterium is thus far limited to DNA-based techniques. Here, we investigated the lipid composition of "Ca. Methylomirabilis oxyfera" to identify new, gene-independent biomarkers for the environmental detection of this bacterium. Multiple "Ca. Methylomirabilis oxyfera" enrichment cultures were investigated. In all cultures, the lipid profile was dominated up to 46% by the fatty acid (FA) 10-methylhexadecanoic acid (10MeC 16:0 ). Furthermore, a unique FA was identified that has not been reported elsewhere: the monounsaturated 10-methylhexadecenoic acid with a double bond at the ⌬7 position (10MeC 16:1⌬7 ), which comprised up to 10% of the total FA profile. We propose that the typical branched fatty acids 10MeC 16:0 and 10MeC 16:1⌬7 are key and characteristic components of the lipid profile of "Ca. Methylomirabilis oxyfera." The successful detection of these fatty acids in a peatland from which one of the enrichment cultures originated supports the potential of these unique lipids as biomarkers for the process of nitrite-dependent methane oxidation in the environment.

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Section: Discussionmentioning

confidence: 99%

Rare Branched Fatty Acids Characterize the Lipid Composition of the Intra-Aerobic Methane Oxidizer “Candidatus Methylomirabilis oxyfera”

Kool

Zhu

Rijpstra

et al. 2012

Appl Environ Microbiol

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“…Blumenberg et al, 2004). DAGE contents are overall low; DAGEs are typically associated with ANME-1/DSS consortia (Blumenberg et al, 2004;Niemann and Elvert, 2008;Rossel et al, 2011), but have been found in ANME-2 dominated systems as well (Chevalier et al, 2010(Chevalier et al, , 2011.…”

Section: Constraints Based On Biomarkersmentioning

confidence: 96%

Time integrated variation of sources of fluids and seepage dynamics archived in authigenic carbonates from Gulf of Mexico Gas Hydrate Seafloor Observatory

et al. 2014

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“…Authigenic carbonate precipitation is mediated by methanotrophic and associated sulfate-reducing bacteria due to anaerobic oxidation of the methane (Ritger et al, 1987;Joye et al, 2010;Chevalier et al, 2011), even below the carbonate compensation depth (Greinert et al, 2002). This mechanism has been suggested for carbonate precipitation in fossil cold-seep-related deposits (e.g.…”

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confidence: 98%

An enigmatic kilometer-scale concentration of small mytilids (Late Miocene, Guadalquivir Basin, S Spain)

Aguirre

Braga

Martín

et al. 2015

Palaeogeography, Palaeoclimatology, Palaeoecology

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Upper Miocene heterozoan carbonates crop out extensively in a NE-SW-trending belt (42 km long and 1.5-8 km wide) along the so-called El Alcor topographic high, from Carmona to Dos Hermanas (Seville, S Spain). These carbonates formed at the southern active margin of the Guadalquivir Basin, the foreland basin of the Betic Cordillera.They change to marls basinward (NE) and to sands landward (SE and SW). Therefore, carbonate production was constrained to a limited area in an otherwise siliciclastic shelf.The carbonates (up to 40 m thick) overlie a gradually coarsening-upward succession of marls followed by silts and sandstones. The carbonate sequence can be divided into three subunits corresponding, from bottom to top, to lowstand, transgressive, and highstands system tracts deposits. The lower subunit, exhibiting extensive trough crossbedding, is interpreted as a shallow-water bar deposit. The intermediate subunit onlaps underlying sediments and was deposited in deeper, low-turbulence conditions. The upper subunit deposits accumulated in a well-oxygenated outer platform based on benthic foraminiferal assemblages. The presence of hummocky and swaley crossstratification in these latter deposits suggests that they were affected by storms.Pervasive fluid-escape structures are also observed throughout the carbonates.The three subunits consist of bioclastic packstones to rudstones made up of abundant fragments of small mytilids. Isotopic data from serpulid polychaete Ditrupa tubes show 13 C-depleted values (up to -16.1‰), whereas  18 O yields normal marine values. Additional isotopic data on shells of scallops, oysters, and small mussels, as well as bulk sediment, show diagenetic alterations. Based on actualistic examples of massive concentrations of mussels, the nearly monospecific composition of the El Alcor deposits, together with negative  13 C values of Ditrupa tubes, indicates that cold seeps A C C E P T E D M A N U S C R I P T

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Authigenic carbonates at cold seeps in the Marmara Sea (Turkey): A lipid biomarker and stable carbon and oxygen isotope investigation

Cited by 46 publications

References 92 publications

Rare Branched Fatty Acids Characterize the Lipid Composition of the Intra-Aerobic Methane Oxidizer “Candidatus Methylomirabilis oxyfera”

Rare Branched Fatty Acids Characterize the Lipid Composition of the Intra-Aerobic Methane Oxidizer “Candidatus Methylomirabilis oxyfera”

Time integrated variation of sources of fluids and seepage dynamics archived in authigenic carbonates from Gulf of Mexico Gas Hydrate Seafloor Observatory

An enigmatic kilometer-scale concentration of small mytilids (Late Miocene, Guadalquivir Basin, S Spain)

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