| Project/Area Number |
21560830
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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 |
Naval and maritime engineering
|
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| Research Institution | Kobe University |
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Principal Investigator |
MIMURA Haruo 神戸大学, 大学院・海事科学研究科, 教授 (90190727)
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| Research Collaborator |
YAGI Masahiro 神戸市環境保健研究所, 環境化学部, 副部長
MIWA Takashi 富山高等専門学校, 准教授
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 海洋環境 / 船底防汚剤耐性菌 / 堆積物 / 有機スズ化合物 / 船底防汚剤 / 長期的遺伝毒性 / 海洋微生物 / 生物吸着 |
|---|
| Research Abstract |
Tributyltin chloride(TBTCl) has still been existed in sediments by adsorption to minerals. We isolated 10 species of TBT-tolerant marine bacteria from busy pots of Japan. Photobacterium sp. TKY1, which was isolated from quarantine anchorage in Tokyo Bay, showed the most tolerant ability toward TBTCl. The isolate survived even when the number of 10^<12. 8> molecules of TBT^+ was associated with a single cell. Changes in the number of surviving cells of TBT-sensitive Vibrio sp. was examined in the presence of the isolate when 100μM of TBTCl was existed. Two order reduction of the number of surviving cells of Vibrio sp. was observed in comparison with that in the absence of the isolate, indicating that the TBT-tolerant marine bacteria might have contributed to the disruption of marine microbial diversity through accumulation of TBT^+ onto cell surface.
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