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Person: M. Elvert

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Publications > Journal Article

Published: July 23, 2015

Science

Exploring deep microbial life in coal-bearing sediment down to 2.5 km below the ocean floor

Authors: Fumio Inagaki, Kai-Uwe Hinrichs, Yusuke Kubo, M. W. Bowles, Victoria B. Heuer, W.-L. Hong, Tatsuhiko Hoshino, Akira Ijiri, H. Imachi, Motoo Ito, M. Kaneko, Mark A. Lever, Y.-S. Lin, B. A. Methe, S. Morita, Yuki Morono, W. Tanikawa, M. Bihan, S. A. Bowden, M. Elvert, Clemens Glombitza, D. Gross, G. J. Harrington, Tomoyuki Hori, K. Li, D. Limmer, C.-H. Liu, M. Murayama, N. Ohkouchi, Shuhei Ono, Y.-S. Park, S. C. Phillips, X. Prieto-Mollar, M. Purkey, Natascha Riedinger, Y. Sanada, Justine Sauvage, G. Snyder, R. Susilawati, Y. Takano, E. Tasumi, Takeshi Terada, H. Tomaru, Elizabeth Trembath-Reichert, D. T. Wang, Y. Yamada

C-DEBI Contribution Number: 310

Publications > Journal Article

Published: March 14, 2013

Science

Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt

Authors: Mark A. Lever, Olivier Rouxel, Jeffrey C. Alt, N. Shimizu, Shuhei Ono, R. M. Coggon, W. C. Shanks, Laura L. Lapham, M. Elvert, X. Prieto-Mollar, Kai-Uwe Hinrichs, Fumio Inagaki, Andreas P. Teske

C-DEBI Contribution Number: 139

Publications > Journal Article

Science

Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt

Authors: Mark A. Lever, Olivier Rouxel, Jeffrey C. Alt, N. Shimizu, Shuhei Ono, R. M. Coggon, W. C. Shanks, Laura L. Lapham, M. Elvert, X. Prieto-Mollar, Kai-Uwe Hinrichs, Fumio Inagaki, Andreas P. Teske

Published: March 14, 2013

C-DEBI Contribution Number: 139

Abstract

Sediment-covered basalt on the flanks of mid-ocean ridges constitutes most of Earth’s oceanic crust, but the composition and metabolic function of its microbial ecosystem are largely unknown. By drilling into 3.5-million-year-old subseafloor basalt, we demonstrated the presence of methane- and sulfur-cycling microbes on the eastern flank of the Juan de Fuca Ridge. Depth horizons with functional genes indicative of methane-cycling and sulfate-reducing microorganisms are enriched in solid-phase sulfur and total organic carbon, host δ¹³C- and δ³⁴S-isotopic values with a biological imprint, and show clear signs of microbial activity when incubated in the laboratory. Downcore changes in carbon and sulfur cycling show discrete geochemical intervals with chemoautotrophic δ¹³C signatures locally attenuated by heterotrophic metabolism.

Source: http://dx.doi.org/10.1126/science.1229240

Publications > Journal Article

Science

Evidence for Microbial Carbon and Sulfur Cycling in Deeply Buried Ridge Flank Basalt

Authors: Mark A. Lever, Olivier Rouxel, Jeffrey C. Alt, N. Shimizu, Shuhei Ono, R. M. Coggon, W. C. Shanks, Laura L. Lapham, M. Elvert, X. Prieto-Mollar, Kai-Uwe Hinrichs, Fumio Inagaki, Andreas P. Teske

Published: March 14, 2013

C-DEBI Contribution Number: 139

Abstract

Sediment-covered basalt on the flanks of mid-ocean ridges constitutes most of Earth’s oceanic crust, but the composition and metabolic function of its microbial ecosystem are largely unknown. By drilling into 3.5-million-year-old subseafloor basalt, we demonstrated the presence of methane- and sulfur-cycling microbes on the eastern flank of the Juan de Fuca Ridge. Depth horizons with functional genes indicative of methane-cycling and sulfate-reducing microorganisms are enriched in solid-phase sulfur and total organic carbon, host δ¹³C- and δ³⁴S-isotopic values with a biological imprint, and show clear signs of microbial activity when incubated in the laboratory. Downcore changes in carbon and sulfur cycling show discrete geochemical intervals with chemoautotrophic δ¹³C signatures locally attenuated by heterotrophic metabolism.

Source: http://dx.doi.org/10.1126/science.1229240

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