| Project/Area Number |
24710005
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Yokohama National University |
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Principal Investigator |
OBAYASHI Yumiko 横浜国立大学, 工学研究院, 研究教員 (60380284)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | 物質循環 / 微生物ループ / 海洋 / 有機物 / 微生物生態系 / 海洋細菌群集 / 細胞外酵素 / 原生生物 / 海洋微生物生態系 / 生物間相互作用 |
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| Research Abstract |
Supplying mechanisms of microbial available organic matter to marine "microbial loop" is not well described. In this study, activities and its profiles of extracellular enzymes which degrade bioorganic molecules in seawater were investigated in various situations (observations and experiments). As results, it was revealed that organic matter degradation enzymes detected in seawater were surely but not all derived from heterotrophic bacteria. Part of organic matter hydrolytic enzymes in seawater might be derived from microbes other than bacteria such as protozoa. Further investigation is needed to understand whole mechanism of organic matter degradation and utilization in marine "microbial loop".
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