FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1993431004> ?p ?o ?g. }

• W1993431004 endingPage "3914" @default.
• W1993431004 startingPage "3903" @default.
• W1993431004 abstract "Sulfur isotope fractionation during microbial sulfate reduction in brackish estuarine sediments was studied using an experimental flow-through reactor approach designed to preserve the in situ physical, geochemical and microbial structure of the sediment. Concurrent measurements of potential sulfate reduction rates and 34S/32S fractionations were carried out using intact sediment slices (2 cm thick, 4.2 cm diameter) from unvegetated, intertidal sites adjoining a salt marsh along the Scheldt estuary, The Netherlands. A total of 30 reactor experiments were performed with sediments collected in February, May and October 2006. The effects of incubation temperature (10, 20, 30 and 50 °C) and sediment depth (0–2, 4–6 and 8–10 cm) were investigated. Sulfate was supplied in non-limiting concentrations via the reactor inflow solutions; no external electron donor was supplied. Isotope fractionations (ε values) were calculated from the measured differences in sulfate δ34S between in- and outflow solutions of the reactors, under quasi-steady state conditions. Potential sulfate reduction rates (SRR) varied over one order of magnitude (5–49 nmol cm−3 h−1) and were highest in the 30 °C incubations. They decreased systematically with depth, and were highest in the sediments collected closest to the vegetated marsh. Isotope fractionations ranged from 9‰ to 34‰ and correlated inversely with SRR, as predicted by the standard fractionation model for enzymatic sulfate reduction of Rees (1973). The ε versus SRR relationship, however, varied between sampling times, with higher ε values measured in February, at comparable SRRs, than in May and October. The observed ε versus SRR relationships also deviated from the previously reported inverse trend for sediments collected in a marine lagoon in Denmark (Canfield, 2001b). Thus, isotope fractionation during sulfate reduction is not uniquely determined by SRR, but is site- and time-dependent. Factors that may affect the ε versus SRR relationship include the structure and size of the sulfate-reducing community, and the nature and accessibility of organic substrates. Whole-sediment data such as those presented here provide a link between isotopic fractionations measured with pure cultures of sulfate-reducing prokaryotes and sulfur isotopic signatures recorded in sedimentary deposits." @default.
• W1993431004 created "2016-06-24" @default.
• W1993431004 creator A5007533373 @default.
• W1993431004 creator A5018199872 @default.
• W1993431004 creator A5037707164 @default.
• W1993431004 creator A5043841314 @default.
• W1993431004 creator A5061212733 @default.
• W1993431004 date "2011-07-01" @default.
• W1993431004 modified "2023-10-04" @default.
• W1993431004 title "34S/32S fractionation by sulfate-reducing microbial communities in estuarine sediments" @default.
• W1993431004 cites W1536359295 @default.
• W1993431004 cites W1538607061 @default.
• W1993431004 cites W1546386038 @default.
• W1993431004 cites W1965724422 @default.
• W1993431004 cites W1969353318 @default.
• W1993431004 cites W1971666952 @default.
• W1993431004 cites W1975589906 @default.
• W1993431004 cites W1976204027 @default.
• W1993431004 cites W1977039338 @default.
• W1993431004 cites W1977592125 @default.
• W1993431004 cites W1989662389 @default.
• W1993431004 cites W1989698825 @default.
• W1993431004 cites W1990245361 @default.
• W1993431004 cites W1990648220 @default.
• W1993431004 cites W1991305203 @default.
• W1993431004 cites W1994173692 @default.
• W1993431004 cites W1994360423 @default.
• W1993431004 cites W1995508857 @default.
• W1993431004 cites W1996766054 @default.
• W1993431004 cites W2000749817 @default.
• W1993431004 cites W2010603268 @default.
• W1993431004 cites W2013816339 @default.
• W1993431004 cites W2015433659 @default.
• W1993431004 cites W2022719300 @default.
• W1993431004 cites W2026405272 @default.
• W1993431004 cites W2028042664 @default.
• W1993431004 cites W2029849132 @default.
• W1993431004 cites W2029951496 @default.
• W1993431004 cites W2036953839 @default.
• W1993431004 cites W2037349850 @default.
• W1993431004 cites W2037619434 @default.
• W1993431004 cites W2042499255 @default.
• W1993431004 cites W2042783269 @default.
• W1993431004 cites W2043024813 @default.
• W1993431004 cites W2045047668 @default.
• W1993431004 cites W2049155474 @default.
• W1993431004 cites W2049499177 @default.
• W1993431004 cites W2051791602 @default.
• W1993431004 cites W2054861741 @default.
• W1993431004 cites W2055100360 @default.
• W1993431004 cites W2056392157 @default.
• W1993431004 cites W2060617303 @default.
• W1993431004 cites W2070535456 @default.
• W1993431004 cites W2076418223 @default.
• W1993431004 cites W2077843476 @default.
• W1993431004 cites W2078921174 @default.
• W1993431004 cites W2091864502 @default.
• W1993431004 cites W2095328787 @default.
• W1993431004 cites W2095711960 @default.
• W1993431004 cites W2102697840 @default.
• W1993431004 cites W2107225219 @default.
• W1993431004 cites W2107401075 @default.
• W1993431004 cites W2108421893 @default.
• W1993431004 cites W2109978029 @default.
• W1993431004 cites W2113551183 @default.
• W1993431004 cites W2114493807 @default.
• W1993431004 cites W2124640583 @default.
• W1993431004 cites W2128214815 @default.
• W1993431004 cites W2132010041 @default.
• W1993431004 cites W213391040 @default.
• W1993431004 cites W2136617541 @default.
• W1993431004 cites W2136996796 @default.
• W1993431004 cites W2140718639 @default.
• W1993431004 cites W2141493813 @default.
• W1993431004 cites W2142346971 @default.
• W1993431004 cites W2146689560 @default.
• W1993431004 cites W2147773750 @default.
• W1993431004 cites W2149161924 @default.
• W1993431004 cites W2150279884 @default.
• W1993431004 cites W2152166034 @default.
• W1993431004 cites W2154562272 @default.
• W1993431004 cites W2159149515 @default.
• W1993431004 cites W2160804006 @default.
• W1993431004 cites W2161184773 @default.
• W1993431004 cites W2162981061 @default.
• W1993431004 cites W220258831 @default.
• W1993431004 cites W2738937425 @default.
• W1993431004 cites W4254527792 @default.
• W1993431004 doi "https://doi.org/10.1016/j.gca.2011.04.022" @default.
• W1993431004 hasPublicationYear "2011" @default.
• W1993431004 type Work @default.
• W1993431004 sameAs 1993431004 @default.
• W1993431004 citedByCount "20" @default.
• W1993431004 countsByYear W19934310042012 @default.
• W1993431004 countsByYear W19934310042013 @default.
• W1993431004 countsByYear W19934310042014 @default.
• W1993431004 countsByYear W19934310042015 @default.
• W1993431004 countsByYear W19934310042016 @default.

• next