Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003403017> ?p ?o ?g. }
- W2003403017 endingPage "118" @default.
- W2003403017 startingPage "102" @default.
- W2003403017 abstract "Active and inactive carbonate chimneys from the Lost City Hydrothermal Field contain up to 0.6% organic carbon with diverse lipid assemblages. The δ13C values of total organic carbon range from −21.5‰ vs. VPDB at an extinct carbonate chimney to −2.8‰ at a 70 °C, actively venting carbonate chimney. Samples collected at locations with total organic carbon with δ13C > −15‰ also contained high abundances of isoprenoidal and nonisoprenoidal diether lipids. Samples with TOC more depleted in 13C lacked or contained lower amounts of these diethers. Isoprenoidal diethers, including sn-2 hydroxyarchaeol, sn-3 hydroxyarchaeol, and putative dihydroxyarchaeol, are likely to derive from methanogenic archaea. These compounds have δ13C values ranging from −2.9 to +6.7‰ vs. VPDB. Nonisoprenoidal diethers and monoethers are presumably derived from bacteria, and have structures similar to those produced by sulfate-reducing bacteria in culture and at cold seeps. In samples that also contained abundant hydroxyarchaeols, these diethers have δ13C values between −11.8 and +3.6‰. In samples without abundant hydroxyarchaeols, the nonisoprenoidal diethers were typically more depleted in 13C, with δ13C as low as −28.7‰ in chimneys and −45‰ in fissures. The diethers at Lost City are probably derived from hydrogen-consuming methanogens and bacteria. High hydrogen concentrations favor methanogenesis over methanotrophy and allow the concurrent growth of methanogens and sulfate-reducing bacteria. The unusual enrichment of 13C in lipids can be attributed to nearly complete consumption of bioavailable carbon in vent fluids. Under carbon-limited conditions, the isotope effects that usually lead to 13C-depletion in organic material cannot be expressed. Consequently, metabolic products such as lipids and methane have δ13C values typical of abiotic carbon." @default.
- W2003403017 created "2016-06-24" @default.
- W2003403017 creator A5021026152 @default.
- W2003403017 creator A5067547169 @default.
- W2003403017 creator A5072506901 @default.
- W2003403017 date "2009-01-01" @default.
- W2003403017 modified "2023-09-27" @default.
- W2003403017 title "Extraordinary 13C enrichment of diether lipids at the Lost City Hydrothermal Field indicates a carbon-limited ecosystem" @default.
- W2003403017 cites W1489938111 @default.
- W2003403017 cites W1500138680 @default.
- W2003403017 cites W1504264745 @default.
- W2003403017 cites W1563851380 @default.
- W2003403017 cites W1612517152 @default.
- W2003403017 cites W1617573700 @default.
- W2003403017 cites W1881446470 @default.
- W2003403017 cites W1965574214 @default.
- W2003403017 cites W1972615373 @default.
- W2003403017 cites W1974228467 @default.
- W2003403017 cites W1974442790 @default.
- W2003403017 cites W1977039338 @default.
- W2003403017 cites W1979503027 @default.
- W2003403017 cites W1980885705 @default.
- W2003403017 cites W1982728536 @default.
- W2003403017 cites W1983384197 @default.
- W2003403017 cites W1985221388 @default.
- W2003403017 cites W1985571897 @default.
- W2003403017 cites W1986671359 @default.
- W2003403017 cites W1987030686 @default.
- W2003403017 cites W1995108967 @default.
- W2003403017 cites W1996039824 @default.
- W2003403017 cites W1996072770 @default.
- W2003403017 cites W2002162573 @default.
- W2003403017 cites W2007328915 @default.
- W2003403017 cites W2007558707 @default.
- W2003403017 cites W2008680648 @default.
- W2003403017 cites W2010465835 @default.
- W2003403017 cites W2013055830 @default.
- W2003403017 cites W2018276910 @default.
- W2003403017 cites W2018465926 @default.
- W2003403017 cites W2020412701 @default.
- W2003403017 cites W2022548650 @default.
- W2003403017 cites W2022916467 @default.
- W2003403017 cites W2027831967 @default.
- W2003403017 cites W2028603122 @default.
- W2003403017 cites W2031482478 @default.
- W2003403017 cites W2034324611 @default.
- W2003403017 cites W2036896125 @default.
- W2003403017 cites W2048839862 @default.
- W2003403017 cites W2053901151 @default.
- W2003403017 cites W2057655240 @default.
- W2003403017 cites W2058299864 @default.
- W2003403017 cites W2063193941 @default.
- W2003403017 cites W2067946096 @default.
- W2003403017 cites W2073715954 @default.
- W2003403017 cites W2074201239 @default.
- W2003403017 cites W2076935944 @default.
- W2003403017 cites W2077584974 @default.
- W2003403017 cites W2078105038 @default.
- W2003403017 cites W2081127172 @default.
- W2003403017 cites W2082498323 @default.
- W2003403017 cites W2085199314 @default.
- W2003403017 cites W2087343508 @default.
- W2003403017 cites W2088489068 @default.
- W2003403017 cites W2091746065 @default.
- W2003403017 cites W2092577661 @default.
- W2003403017 cites W2095416313 @default.
- W2003403017 cites W2095834328 @default.
- W2003403017 cites W2096297162 @default.
- W2003403017 cites W2104544600 @default.
- W2003403017 cites W2106845203 @default.
- W2003403017 cites W2107710538 @default.
- W2003403017 cites W2108342313 @default.
- W2003403017 cites W2110129716 @default.
- W2003403017 cites W2110184033 @default.
- W2003403017 cites W2110364701 @default.
- W2003403017 cites W2113449951 @default.
- W2003403017 cites W2114831404 @default.
- W2003403017 cites W2115722351 @default.
- W2003403017 cites W2118472934 @default.
- W2003403017 cites W2118598909 @default.
- W2003403017 cites W2120004793 @default.
- W2003403017 cites W2120190439 @default.
- W2003403017 cites W2123345744 @default.
- W2003403017 cites W2125611981 @default.
- W2003403017 cites W2126064727 @default.
- W2003403017 cites W2135490410 @default.
- W2003403017 cites W2136299595 @default.
- W2003403017 cites W2137856147 @default.
- W2003403017 cites W2138060941 @default.
- W2003403017 cites W2139190083 @default.
- W2003403017 cites W2143869311 @default.
- W2003403017 cites W2143951093 @default.
- W2003403017 cites W2147992129 @default.
- W2003403017 cites W2148847249 @default.
- W2003403017 cites W2149916005 @default.
- W2003403017 cites W2150898734 @default.
- W2003403017 cites W2153323573 @default.
- W2003403017 cites W2155658032 @default.