2010 Fiscal Year Final Research Report
Environmental signals and responses in metamorphosis of the coral Acropora
| Project/Area Number |
20570201
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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 |
Developmental biology
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| Research Institution | Ochanomizu University |
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Principal Investigator |
HATTA Masayuki Ochanomizu University, 大学院・人間文化創成科学研究科, 准教授 (00249947)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 生態発生 / 進化発生 / サンゴ / 変態 |
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| Research Abstract |
The planula larva of acroporid coral is arrested in development, and starts metamorphosis after receiving environmental signals from the substrate to settle on. In this study, experiments using dissected larvae revealed that responsiveness to a metamorphosis-inducing hormone is restricted within the aboral1/3region while responsiveness to external metamorphic cues is distributed along the whole body. These results suggest downstream internal signals secreted from aboral tissues to achieve metamorphic reactions throughout the whole body following the hormone, and an alternative metamorphic signaling cascade beside the hormone in the oral region.
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