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• W2969792695 endingPage "3181" @default.
• W2969792695 startingPage "3165" @default.
• W2969792695 abstract "Abstract. Dissimilatory iron reduction is probably one of the oldest types of metabolisms that still participates in important biogeochemical cycles, such as those of carbon and sulfur. It is one of the more energetically favorable anaerobic microbial respiration processes and is usually coupled to the oxidation of organic matter. Traditionally this process is thought to be limited to the shallow part of the sedimentary column in most aquatic systems. However, iron reduction has also been observed in the methanic zone of many marine and freshwater sediments, well below its expected zone and occasionally accompanied by decreases in methane, suggesting a link between the iron and the methane cycles. Nevertheless, the mechanistic nature of this link (competition, redox or other) has yet to be established and has not been studied in oligotrophic shallow marine sediments. In this study we present combined geochemical and molecular evidences for microbial iron reduction in the methanic zone of the oligotrophic southeastern (SE) Mediterranean continental shelf. Geochemical porewater profiles indicate iron reduction in two zones, the uppermost part of the sediment, and the deeper zone, in the layer of high methane concentration. Results from a slurry incubation experiment indicate that the deep methanic iron reduction is microbially mediated. The sedimentary profiles of microbial abundance and quantitative PCR (qPCR) of the mcrA gene, together with Spearman correlation between the microbial data and Fe(II) concentrations in the porewater, suggest types of potential microorganisms that may be involved in the iron reduction via several potential pathways: H2 or organic matter oxidation, an active sulfur cycle, or iron-driven anaerobic oxidation of methane. We suggest that significant upward migration of methane in the sedimentary column and its oxidation by sulfate may fuel the microbial activity in the sulfate methane transition zone (SMTZ). The biomass created by this microbial activity can be used by the iron reducers below, in the methanic zone of the sediments of the SE Mediterranean." @default.
• W2969792695 created "2019-08-29" @default.
• W2969792695 creator A5003284623 @default.
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• W2969792695 date "2019-08-23" @default.
• W2969792695 modified "2023-10-06" @default.
• W2969792695 title "Evidence for microbial iron reduction in the methanic sediments of the oligotrophic southeastern Mediterranean continental shelf" @default.
• W2969792695 cites W1571732505 @default.
• W2969792695 cites W1573217879 @default.
• W2969792695 cites W1573736429 @default.
• W2969792695 cites W1612517152 @default.
• W2969792695 cites W1667415595 @default.
• W2969792695 cites W1897475177 @default.
• W2969792695 cites W1914559929 @default.
• W2969792695 cites W1961334287 @default.
• W2969792695 cites W1965995994 @default.
• W2969792695 cites W1969368553 @default.
• W2969792695 cites W1978156487 @default.
• W2969792695 cites W1984471612 @default.
• W2969792695 cites W1985149054 @default.
• W2969792695 cites W1991002259 @default.
• W2969792695 cites W2003713178 @default.
• W2969792695 cites W2008680648 @default.
• W2969792695 cites W2009778629 @default.
• W2969792695 cites W2011647563 @default.
• W2969792695 cites W2013493232 @default.
• W2969792695 cites W2015014274 @default.
• W2969792695 cites W2016419859 @default.
• W2969792695 cites W2017478854 @default.
• W2969792695 cites W2018276910 @default.
• W2969792695 cites W2018537997 @default.
• W2969792695 cites W2025870583 @default.
• W2969792695 cites W2029025852 @default.
• W2969792695 cites W2035398133 @default.
• W2969792695 cites W2041555263 @default.
• W2969792695 cites W2043668123 @default.
• W2969792695 cites W2044890068 @default.
• W2969792695 cites W2045780987 @default.
• W2969792695 cites W2045793644 @default.
• W2969792695 cites W2048773359 @default.
• W2969792695 cites W2051440740 @default.
• W2969792695 cites W2051540030 @default.
• W2969792695 cites W2054645658 @default.
• W2969792695 cites W2054835895 @default.
• W2969792695 cites W2055046825 @default.
• W2969792695 cites W2058722712 @default.
• W2969792695 cites W2059041353 @default.
• W2969792695 cites W2059294660 @default.
• W2969792695 cites W2069006165 @default.
• W2969792695 cites W2072172339 @default.
• W2969792695 cites W2072970694 @default.
• W2969792695 cites W2077614743 @default.
• W2969792695 cites W2078184512 @default.
• W2969792695 cites W2078870174 @default.
• W2969792695 cites W2083919021 @default.
• W2969792695 cites W2084013503 @default.
• W2969792695 cites W2088220696 @default.
• W2969792695 cites W2089465072 @default.
• W2969792695 cites W2091913250 @default.
• W2969792695 cites W2094596285 @default.
• W2969792695 cites W2105230272 @default.
• W2969792695 cites W2106651308 @default.
• W2969792695 cites W2111843680 @default.
• W2969792695 cites W2115263958 @default.
• W2969792695 cites W2116573145 @default.
• W2969792695 cites W2118818383 @default.
• W2969792695 cites W2120882536 @default.
• W2969792695 cites W2121766793 @default.
• W2969792695 cites W2121922505 @default.
• W2969792695 cites W2123731620 @default.
• W2969792695 cites W2126028255 @default.
• W2969792695 cites W2127497422 @default.
• W2969792695 cites W2133003046 @default.
• W2969792695 cites W2134953175 @default.
• W2969792695 cites W2135191113 @default.
• W2969792695 cites W2138060941 @default.
• W2969792695 cites W2139625379 @default.
• W2969792695 cites W2141698562 @default.
• W2969792695 cites W2144055036 @default.
• W2969792695 cites W2145321579 @default.
• W2969792695 cites W2147818114 @default.
• W2969792695 cites W2150393300 @default.
• W2969792695 cites W2150588427 @default.
• W2969792695 cites W2152971512 @default.
• W2969792695 cites W2158651150 @default.
• W2969792695 cites W2161582133 @default.
• W2969792695 cites W2165670153 @default.
• W2969792695 cites W2166618114 @default.
• W2969792695 cites W2168610019 @default.
• W2969792695 cites W2169386036 @default.
• W2969792695 cites W2170169831 @default.
• W2969792695 cites W2200904077 @default.
• W2969792695 cites W2259792312 @default.

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