| Project/Area Number |
23651021
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | National Institute for Environmental Studies |
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Principal Investigator |
UCHIDA Masao 独立行政法人国立環境研究所, 環境計測研究センター, 主任研究員 (50344289)
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| Project Period (FY) |
2011 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 海洋古細菌 / 代謝 / 放射性炭素 / 溶存有機炭素 / 海洋微生物ループ / 古細菌 / DOC / 炭素循環 |
|---|
| Research Abstract |
Metabolism of marine archaea is well unknown, such as relative abundance of archaea with heterotrophic and autotrophic metabolisms. To elucidate the role in the carbon cycle, the GDGTs derived from membrane lipids of marine archaea were studied using natural level radiocarbon tracer, which samples was collected from a commercial deep water collection facility in Suruga bay. The carbon fixation rate was estimated by using in-situ incubation experiment and published values. The 48-54% of Crenarchaeota are estimated with autorophic metabolism and their carbon amount accumulation rate was from1.29Gt C/y to 6.29Gt C/y
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