| Project/Area Number |
19510007
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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 |
Environmental dynamic analysis
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| Research Institution | Hiroshima University |
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Principal Investigator |
MATSUZAKI Masahiro Hiroshima University, 大学院・理学研究科, 助教 (50294517)
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| Co-Investigator(Renkei-kenkyūsha) |
IMURA Satoshi 国立極地研究所, 研究教育系, 准教授 (90221788)
KUDOH Sakae 国立極地研究所, 研究教育系, 准教授 (40221931)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 嫌気呼吸 / 硫黄循環 / 南極湖沼 / 気候変動 / 環境変動 / 水環境 / 細菌 / 細菌群集構造解析 |
|---|
| Research Abstract |
16S rRNA clone library analysis was used to examine the biodiversity and community structure in Antarctic salt and freshwater lakes. The bacterial community structures of salt lakes in which haloclines exist differed between these three salt lakes, indicating that there were many unidentified bacteria, and that they were rich in biodiversity. The bacterial communities of eight freshwater lakes formed a simple structure, such as Thiomicrospira sp., which inhabits the ocean in polar regions and fall water around McMurdo Dry Valleys, becomes the predominant genus. Phylogenetic analysis revealed that these bacteria growing in salt and freshwater lakes were closely related genera. These results suggested that these bacterial communities differed based on the salinity.
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