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Molecular characterization of microbial communities in fault-bordered aquifers in the Miocene formation of northernmost Japan

https://hiroshima.repo.nii.ac.jp/records/2006923
https://hiroshima.repo.nii.ac.jp/records/2006923
a8904a74-4c3a-4f04-8fa2-5d24273a6d04
名前 / ファイル ライセンス アクション
geobiol_4_3_203.pdf geobiol_4_3_203.pdf (2.3 MB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Molecular characterization of microbial communities in fault-bordered aquifers in the Miocene formation of northernmost Japan
言語 en
作成者 Simizu, S.

× Simizu, S.

en Simizu, S.

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Akiyama, M.

× Akiyama, M.

en Akiyama, M.

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Ishijima, Y.

× Ishijima, Y.

en Ishijima, Y.

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Hama, K.

× Hama, K.

en Hama, K.

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Kunimaru, T.

× Kunimaru, T.

en Kunimaru, T.

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Naganuma, Takeshi

× Naganuma, Takeshi

en Naganuma, Takeshi

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 Copyright (c) Blackwell Publishing. The definitive version is available at www.blackwell-synergy.com
主題
主題Scheme NDC
主題 460
内容記述
内容記述 We investigated the diversity and distribution of archaeal and bacterial 16S rRNA gene sequences in deep aquifers of mid- to late Miocene hard shale located in the northernmost region of the Japanese archipelago. A major fault in the north-west-south-east (NW-SE) direction runs across the studied area. We collected three groundwater samples from boreholes on the south-west (SW) side of the fault at depths of 296, 374 and 625 m below ground level (m.b.g.l.) and one sample from the north-east (NE) side of the fault at a depth of 458 m.b.g.l. The groundwater samples were observed to be neutral and weakly saline. The total microbial counts after staining with acridine orange were in the order 105-106 cells mL-1 and 103 cells mL-1 in the aquifers to the SW and to the NE of the fault, respectively. A total of 407 archaeal and bacterial 16S rRNA gene sequences (204 and 203 sequences, respectively) were determined for clone libraries constructed from all groundwater samples. Phylogenetic analyses showed that the libraries constructed from the SW aquifers were generally coherent but considerably different from those constructed from the NE aquifer. All of the archaeal clone libraries from the SW aquifers were predominated by a single sequence closely related to the archaeon Methanoculleus chikugoensis, and the corresponding bacterial libraries were mostly predominated by the sequences related to Bacteroidetes, Firmicutes and δ-Proteobacteria. In contrast, the libraries from the NE aquifer were dominated by uncultured environmental archaeal clones with no methanogen sequences and by β-proteobacterial clones with no sequences related to Bacteroidetes and δ-Proteobacteria. Hence, the possible coexistence of methanogens and sulphate reducers in Horonobe deep borehole (HDB) on the SW side is suggested, particularly in HDB-6 (374 m.b.g.l.). Moreover, these organisms might play an important geochemical role in the groundwater obtained from the aquifers.
言語 en
出版者
出版者 Blackewell Publishing
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ AO
出版タイプResource http://purl.org/coar/version/c_b1a7d7d4d402bcce
関連情報
識別子タイプ DOI
関連識別子 10.1111/j.1472-4669.2006.00077.x
関連情報
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1111/j.1472-4669.2006.00077.x
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 1472-4677
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA11694064
開始ページ
開始ページ 203
書誌情報 Geobiology
Geobiology

巻 4, 号 3, p. 203-213, 発行日 2006-09
旧ID 15011
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