Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment
We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Antler, Gilad [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013transfer abstract |
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| Umfang: |
20 |
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| Übergeordnetes Werk: |
Enthalten in: 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis - Taylor, William R. ELSEVIER, 2014, journal of the Geochemical Society and the Meteoritical Society, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:118 ; year:2013 ; day:1 ; month:10 ; pages:98-117 ; extent:20 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.gca.2013.05.005 |
|---|
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ELV027597377 |
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| 100 | 1 | |a Antler, Gilad |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment |
| 264 | 1 | |c 2013transfer abstract | |
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| 520 | |a We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. | ||
| 520 | |a We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. | ||
| 700 | 1 | |a Turchyn, Alexandra V. |4 oth | |
| 700 | 1 | |a Rennie, Victoria |4 oth | |
| 700 | 1 | |a Herut, Barak |4 oth | |
| 700 | 1 | |a Sivan, Orit |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Taylor, William R. ELSEVIER |t 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis |d 2014 |d journal of the Geochemical Society and the Meteoritical Society |g New York, NY [u.a.] |w (DE-627)ELV012653268 |
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10.1016/j.gca.2013.05.005 doi GBV00000000000162A.pica (DE-627)ELV027597377 (ELSEVIER)S0016-7037(13)00269-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 570 VZ BIODIV DE-30 fid 35.70 bkl 42.12 bkl 42.15 bkl Antler, Gilad verfasserin aut Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment 2013transfer abstract 20 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. Turchyn, Alexandra V. oth Rennie, Victoria oth Herut, Barak oth Sivan, Orit oth Enthalten in Elsevier Taylor, William R. ELSEVIER 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis 2014 journal of the Geochemical Society and the Meteoritical Society New York, NY [u.a.] (DE-627)ELV012653268 volume:118 year:2013 day:1 month:10 pages:98-117 extent:20 https://doi.org/10.1016/j.gca.2013.05.005 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 35.70 Biochemie: Allgemeines VZ 42.12 Biophysik VZ 42.15 Zellbiologie VZ AR 118 2013 1 1001 98-117 20 045F 550 |
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10.1016/j.gca.2013.05.005 doi GBV00000000000162A.pica (DE-627)ELV027597377 (ELSEVIER)S0016-7037(13)00269-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 570 VZ BIODIV DE-30 fid 35.70 bkl 42.12 bkl 42.15 bkl Antler, Gilad verfasserin aut Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment 2013transfer abstract 20 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. Turchyn, Alexandra V. oth Rennie, Victoria oth Herut, Barak oth Sivan, Orit oth Enthalten in Elsevier Taylor, William R. ELSEVIER 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis 2014 journal of the Geochemical Society and the Meteoritical Society New York, NY [u.a.] (DE-627)ELV012653268 volume:118 year:2013 day:1 month:10 pages:98-117 extent:20 https://doi.org/10.1016/j.gca.2013.05.005 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 35.70 Biochemie: Allgemeines VZ 42.12 Biophysik VZ 42.15 Zellbiologie VZ AR 118 2013 1 1001 98-117 20 045F 550 |
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10.1016/j.gca.2013.05.005 doi GBV00000000000162A.pica (DE-627)ELV027597377 (ELSEVIER)S0016-7037(13)00269-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 570 VZ BIODIV DE-30 fid 35.70 bkl 42.12 bkl 42.15 bkl Antler, Gilad verfasserin aut Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment 2013transfer abstract 20 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. Turchyn, Alexandra V. oth Rennie, Victoria oth Herut, Barak oth Sivan, Orit oth Enthalten in Elsevier Taylor, William R. ELSEVIER 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis 2014 journal of the Geochemical Society and the Meteoritical Society New York, NY [u.a.] (DE-627)ELV012653268 volume:118 year:2013 day:1 month:10 pages:98-117 extent:20 https://doi.org/10.1016/j.gca.2013.05.005 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 35.70 Biochemie: Allgemeines VZ 42.12 Biophysik VZ 42.15 Zellbiologie VZ AR 118 2013 1 1001 98-117 20 045F 550 |
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10.1016/j.gca.2013.05.005 doi GBV00000000000162A.pica (DE-627)ELV027597377 (ELSEVIER)S0016-7037(13)00269-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 570 VZ BIODIV DE-30 fid 35.70 bkl 42.12 bkl 42.15 bkl Antler, Gilad verfasserin aut Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment 2013transfer abstract 20 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. Turchyn, Alexandra V. oth Rennie, Victoria oth Herut, Barak oth Sivan, Orit oth Enthalten in Elsevier Taylor, William R. ELSEVIER 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis 2014 journal of the Geochemical Society and the Meteoritical Society New York, NY [u.a.] (DE-627)ELV012653268 volume:118 year:2013 day:1 month:10 pages:98-117 extent:20 https://doi.org/10.1016/j.gca.2013.05.005 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 35.70 Biochemie: Allgemeines VZ 42.12 Biophysik VZ 42.15 Zellbiologie VZ AR 118 2013 1 1001 98-117 20 045F 550 |
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10.1016/j.gca.2013.05.005 doi GBV00000000000162A.pica (DE-627)ELV027597377 (ELSEVIER)S0016-7037(13)00269-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 570 VZ BIODIV DE-30 fid 35.70 bkl 42.12 bkl 42.15 bkl Antler, Gilad verfasserin aut Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment 2013transfer abstract 20 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. Turchyn, Alexandra V. oth Rennie, Victoria oth Herut, Barak oth Sivan, Orit oth Enthalten in Elsevier Taylor, William R. ELSEVIER 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis 2014 journal of the Geochemical Society and the Meteoritical Society New York, NY [u.a.] (DE-627)ELV012653268 volume:118 year:2013 day:1 month:10 pages:98-117 extent:20 https://doi.org/10.1016/j.gca.2013.05.005 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 35.70 Biochemie: Allgemeines VZ 42.12 Biophysik VZ 42.15 Zellbiologie VZ AR 118 2013 1 1001 98-117 20 045F 550 |
| language |
English |
| source |
Enthalten in 109 Discovery of Novel DNA Methylation Markers for the Detection of Colorectal Neoplasia: Selection by Methylome-Wide Analysis New York, NY [u.a.] volume:118 year:2013 day:1 month:10 pages:98-117 extent:20 |
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Coupled sulfur and oxygen isotope insight into bacterial sulfate reduction in the natural environment |
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We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. |
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We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. |
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We present new sulfur and oxygen isotope data in sulfate ( δ 34 S SO 4 and δ 18 O SO 4 , respectively), from globally distributed marine and estuary pore fluids. We use this data with a model of the biochemical steps involved in bacterial sulfate reduction (BSR) to explore how the slope on a δ 18 O SO 4 vs. δ 34 S SO 4 plot relates to the net sulfate reduction rate (nSRR) across a diverse range of natural environments. Our data demonstrate a correlation between the nSRR and the slope of the relative evolution of oxygen and sulfur isotopes ( δ 18 O SO 4 vs. δ 34 S SO 4 ) in the residual sulfate pool, such that higher nSRR results in a lower slope (sulfur isotopes increase faster relative to oxygen isotopes). We combine these results with previously published literature data to show that this correlation scales over many orders of magnitude of nSRR. Our model of the mechanism of BSR indicates that the critical parameter for the relative evolution of oxygen and sulfur isotopes in sulfate during BSR in natural environments is the rate of intracellular sulfite oxidation. In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . We speculate that the recycling of sulfite plays a physiological role during BSR, helping maintain microbial activity where the availability of the electron donor (e.g. available organic matter) is low. |
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In environments where sulfate reduction is fast, such as estuaries and marginal marine environments, this sulfite reoxidation is minimal, and the δ 18 O SO 4 increases more slowly relative to the δ 34 S SO 4 . In contrast, in environments where sulfate reduction is very slow, such as deep sea sediments, our model suggests sulfite reoxidation is far more extensive, with as much as 99% of the sulfate being thus recycled; in these environments the δ 18 O SO 4 increases much more rapidly relative to the δ 34 S SO 4 . 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