| Project/Area Number |
20710008
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
KURIHARA Haruko University of the Ryukyus, 亜熱帯島嶼科学超域研究推進機構, 特命助教 (40397568)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 海洋酸性化 / 二酸化炭素 / 石灰化 / 石灰化関連遺伝子 / ウニ / pH / 酸性化 / 温暖化 / 炭酸カルシウム / バイオミネラリゼー / 石灰化生物 |
|---|
| Research Abstract |
Increasing atmospheric CO2 is predicted to decrease the seawater pH and calcium carbonate saturation state and acidify the oceanic seawater. Recent studies revealed that ocean acidification cause malformed shells and spicules on marine calcifiers including sea urchins and bivalves. However, the mechanism of these effects is still unclear. In this present study, we evaluated the expression of skeletogenesis related genes on sea urchins larvae cultured under different pH conditions. As a result we cleared that the expression of the gene known to be related on Ca2+ transportation decreased with pH decrease. There results first demonstrated that ocean acidification can affect the calcification process of marine organisms at a molecular biological level.
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