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1

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Deep-biosphere methane production stimulated by geofluids in the Nankai accretionary complex

Ijiri, Akira ; Inagaki, Fumio ; Kubo, Yusuke ; [et al.]

American Association for the Advancement of Science (AAAS) ; 2018

In: Science Advances Vol. 4, No. 6 ( 2018-06)

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In: Science Advances, American Association for the Advancement of Science (AAAS), Vol. 4, No. 6 ( 2018-06)

Abstract: Microbial life inhabiting subseafloor sediments plays an important role in Earth’s carbon cycle. However, the impact of geodynamic processes on the distributions and carbon-cycling activities of subseafloor life remains poorly constrained. We explore a submarine mud volcano of the Nankai accretionary complex by drilling down to 200 m below the summit. Stable isotopic compositions of water and carbon compounds, including clumped methane isotopologues, suggest that ~90% of methane is microbially produced at 16° to 30°C and 300 to 900 m below seafloor, corresponding to the basin bottom, where fluids in the accretionary prism are supplied via megasplay faults. Radiotracer experiments showed that relatively small microbial populations in deep mud volcano sediments (10 2 to 10 3 cells cm −3 ) include highly active hydrogenotrophic methanogens and acetogens. Our findings indicate that subduction-associated fluid migration has stimulated microbial activity in the mud reservoir and that mud volcanoes may contribute more substantially to the methane budget than previously estimated.

Type of Medium: Online Resource

ISSN: 2375-2548

URL: Article

DOI: 10.1126/sciadv.aao4631

Language: English

Publisher: American Association for the Advancement of Science (AAAS)

Publication Date: 2018

detail.hit.zdb_id: 2810933-8

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2

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Phylogenetic and enzymatic diversity of deep subseafloor aerobic microorganisms in organics- and methane-rich sediments off Shimokita Peninsula

Kobayashi, Tohru ; Koide, Osamu ; Mori, Kozue ; [et al.]

Springer Science and Business Media LLC ; 2008

In: Extremophiles Vol. 12, No. 4 ( 2008-7), p. 519-527

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In: Extremophiles, Springer Science and Business Media LLC, Vol. 12, No. 4 ( 2008-7), p. 519-527

Type of Medium: Online Resource

ISSN: 1431-0651 , 1433-4909

URL: Article

DOI: 10.1007/s00792-008-0157-7

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2008

detail.hit.zdb_id: 1481278-2

SSG: 12

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3

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Microbial gene expression in Guaymas Basin subsurface sediments responds to hydrothermal stress and energy limitation

Mara, Paraskevi ; Zhou, Ying-Li ; Teske, Andreas ; [et al.]

Springer Science and Business Media LLC ; 2023

In: The ISME Journal

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In: The ISME Journal, Springer Science and Business Media LLC

Type of Medium: Online Resource

ISSN: 1751-7362 , 1751-7370

URL: Article

DOI: 10.1038/s41396-023-01492-z

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2023

detail.hit.zdb_id: 2299378-2

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4

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Cultivation of methanogenic community from subseafloor sediments using a continuous-flow bioreactor

Imachi, Hiroyuki ; Aoi, Ken ; Tasumi, Eiji ; [et al.]

Springer Science and Business Media LLC ; 2011

In: The ISME Journal Vol. 5, No. 12 ( 2011-12), p. 1913-1925

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In: The ISME Journal, Springer Science and Business Media LLC, Vol. 5, No. 12 ( 2011-12), p. 1913-1925

Type of Medium: Online Resource

ISSN: 1751-7362 , 1751-7370

URL: Article

DOI: 10.1038/ismej.2011.64

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2011

detail.hit.zdb_id: 2299378-2

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5

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Aerobic microbial life persists in oxic marine sediment as old as 101.5 million years

Morono, Yuki ; Ito, Motoo ; Hoshino, Tatsuhiko ; [et al.]

Springer Science and Business Media LLC ; 2020

In: Nature Communications Vol. 11, No. 1 ( 2020-07-28)

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In: Nature Communications, Springer Science and Business Media LLC, Vol. 11, No. 1 ( 2020-07-28)

Abstract: Sparse microbial populations persist from seafloor to basement in the slowly accumulating oxic sediment of the oligotrophic South Pacific Gyre (SPG). The physiological status of these communities, including their substrate metabolism, is previously unconstrained. Here we show that diverse aerobic members of communities in SPG sediments (4.3‒101.5 Ma) are capable of readily incorporating carbon and nitrogen substrates and dividing. Most of the 6986 individual cells analyzed with nanometer-scale secondary ion mass spectrometry (NanoSIMS) actively incorporated isotope-labeled substrates. Many cells responded rapidly to incubation conditions, increasing total numbers by 4 orders of magnitude and taking up labeled carbon and nitrogen within 68 days after incubation. The response was generally faster (on average, 3.09 times) for nitrogen incorporation than for carbon incorporation. In contrast, anaerobic microbes were only minimally revived from this oxic sediment. Our results suggest that microbial communities widely distributed in organic-poor abyssal sediment consist mainly of aerobes that retain their metabolic potential under extremely low-energy conditions for up to 101.5 Ma.

Type of Medium: Online Resource

ISSN: 2041-1723

URL: Article

DOI: 10.1038/s41467-020-17330-1

Language: English

Publisher: Springer Science and Business Media LLC

Publication Date: 2020

detail.hit.zdb_id: 2553671-0

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6

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Atribacteria from the Subseafloor Sedimentary Biosphere Disperse to the Hydrosphere through Submarine Mud Volcanoes

Hoshino, Tatsuhiko ; Toki, Tomohiro ; Ijiri, Akira ; [et al.]

Frontiers Media SA ; 2017

In: Frontiers in Microbiology Vol. 8 ( 2017-06-20)

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In: Frontiers in Microbiology, Frontiers Media SA, Vol. 8 ( 2017-06-20)

Type of Medium: Online Resource

ISSN: 1664-302X

URL: Article

DOI: 10.3389/fmicb.2017.01135

Language: Unknown

Publisher: Frontiers Media SA

Publication Date: 2017

detail.hit.zdb_id: 2587354-4

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7

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Accessing the Subsurface Biosphere Within Rocks Undergoing Active Low‐Temperature Serpentinization in the Samail Ophiolite (Oman Drilling Project)

Templeton, Alexis S. ; Ellison, Eric T. ; Glombitza, Clemens ; [et al.]

American Geophysical Union (AGU) ; 2021

In: Journal of Geophysical Research: Biogeosciences Vol. 126, No. 10 ( 2021-10)

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In: Journal of Geophysical Research: Biogeosciences, American Geophysical Union (AGU), Vol. 126, No. 10 ( 2021-10)

Abstract: Highly serpentinized subsurface rocks exhibit steep redox gradients and host microbial cell abundances that vary 〉 6 orders of magnitude Low rates of microbial sulfate reduction in rock cores are inferred to result in optical darkening and sulfide overprinting of the mineralogy Widespread andradite garnet, abundant ferroan brucite, and rare carbonate are targets for future spatially resolved life‐detection efforts

Type of Medium: Online Resource

ISSN: 2169-8953 , 2169-8961

URL: Article

DOI: 10.1029/2021JG006315

Language: English

Publisher: American Geophysical Union (AGU)

Publication Date: 2021

detail.hit.zdb_id: 3094167-2

detail.hit.zdb_id: 2220777-6

SSG: 16,13

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8

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Radical Gas-Based DNA Decontamination for Ultra-Sensitive Molecular Experiments

Morono, Yuki ; Yamamoto, Katsuhiro ; Inagaki, Fumio

Japanese Society of Microbial Ecology ; 2012

In: Microbes and Environments Vol. 27, No. 4 ( 2012), p. 512-514

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In: Microbes and Environments, Japanese Society of Microbial Ecology, Vol. 27, No. 4 ( 2012), p. 512-514

Type of Medium: Online Resource

ISSN: 1342-6311 , 1347-4405

URL: Article

DOI: 10.1264/jsme2.ME12061

Language: English

Publisher: Japanese Society of Microbial Ecology

Publication Date: 2012

detail.hit.zdb_id: 2039087-7

SSG: 12

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9

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Simple In-liquid Staining of Microbial Cells for Flow Cytometry Quantification of the Microbial Population in Marine Subseafloor Sediments

Mori, Fumiaki ; Nishimura, Tomoya ; Wakamatsu, Taisuke ; [et al.]

Japanese Society of Microbial Ecology ; 2021

In: Microbes and Environments Vol. 36, No. 3 ( 2021), p. n/a-

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In: Microbes and Environments, Japanese Society of Microbial Ecology, Vol. 36, No. 3 ( 2021), p. n/a-

Type of Medium: Online Resource

ISSN: 1342-6311 , 1347-4405

URL: Article

DOI: 10.1264/jsme2.ME21031

Language: English

Publisher: Japanese Society of Microbial Ecology

Publication Date: 2021

detail.hit.zdb_id: 2039087-7

SSG: 12

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10

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Evolution of (Bio‐)Geochemical Processes and Diagenetic Alteration of Sediments Along the Tectonic Migration of Ocean Floor in the Shikoku Basin off Japan

Köster, Male ; Kars, Myriam ; Schubotz, Florence ; [et al.]

American Geophysical Union (AGU) ; 2021

In: Geochemistry, Geophysics, Geosystems Vol. 22, No. 8 ( 2021-08)

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In: Geochemistry, Geophysics, Geosystems, American Geophysical Union (AGU), Vol. 22, No. 8 ( 2021-08)

Abstract: The tectonic migration of ocean floor led to a transition from an organic carbon‐starved to an elevated organic carbon burial environment Diagenetic transformation of iron oxides into pyrite within the carbon‐lean sediments occurred several millions of years after deposition Reducible iron(III), which is mostly present in phyllosilicates, can potentially fuel microbially mediated mineral alteration

Type of Medium: Online Resource

ISSN: 1525-2027 , 1525-2027

URL: Article

DOI: 10.1029/2020GC009585

Language: English

Publisher: American Geophysical Union (AGU)

Publication Date: 2021

detail.hit.zdb_id: 2027201-7

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Kooperativer Bibliotheksverbund

Berlin Brandenburg