2017 Fiscal Year Final Research Report
Evaluation of coral resistance to bleaching event by enhancement of antioxidant activity
| Project/Area Number |
15K00594
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Modeling and technologies for environmental conservation and remediation
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
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| Research Collaborator |
NAKAMURA Shyouhei
MIYAZATO Ako
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 造礁サンゴ / 共生藻 / 白化現象 / 抗酸化酵素 / 微量金属元素 / スーパーオキシドディスムターゼ / 光合成速度 / 石灰化速度 |
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| Outline of Final Research Achievements |
Coral bleaching is observed in all over the world that can be attributed to global warming. Active oxygen species are generated in coral host and symbiotic algae when the coral receives the stresses such as high water temperature. Coral resists the active oxygen species by using an antioxidative enzyme. The antioxidative enzyme has the trace elements such as Zn, Cu, and Mn in the center of the enzyme structure as cofactors. Since these trace metals are important essential element of antioxidant enzymes, it is possible that metal enrichment can increase the enzymatic activity in coral and hence resistance to coral bleaching. However, the potential amount of trace metals incorporated into coral, the coral response of photosynthesis and calcification, and the antioxidant enzymatic activity during bleaching have not been elucidated. The purpose of this study is to investigate the effect of trace elements enriched in coral on photosynthesis, calcification and antioxidant enzyme activity.
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| Free Research Field |
地球化学、サンゴ礁沿岸環境学
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