| Project/Area Number |
22560811
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Earth system and resources enginnering
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
TASUMI Eiji 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 技術研究副主任 (50553228)
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| Co-Investigator(Kenkyū-buntansha) |
IMACHI Hiroyuki 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 主任研究員 (20361933)
TAKAI Ken 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, プログラムディレクター (80359166)
KAWAGUCHI Shinsuke 独立行政法人海洋研究開発機構, 海洋・極限環境生物圏領域, 研究員 (50553088)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | メタン / 圧力培養 / メタン炭素同位体 / 資源探査 |
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| Research Abstract |
Methanosarcina sp. NT-MS1 that had been isolated from Nankai Trough subseafloor sediment using batch-culture was cultured under high pressure conditions. Its optimum pressure for growth was 15 MPa, and it showed positive growth with methanogenesis at its habitat pressure (25 MPa). Takai et al. reported that the hyperthermophilic methanogen, Methanopyrus kandleri strain 116, generates “isotopically heavy” methane under high pressure conditions. But, strain NT-MS1 generated “isotopically light (Δ~<13>C-CH_4 = -81～-63‰)” methane at 5 to 35 Mpa.
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