2022 Fiscal Year Final Research Report
Change prediction of aquatic plant diversity in response to environmental changes of streams and rivers
Project/Area Number |
20K06091
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 39060:Conservation of biological resources-related
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Research Institution | University of Yamanashi |
Principal Investigator |
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 環境応答 / 水生植物相 / 水質環境 / 光合成温度特性 / 光合成光特性 / 淡水大型藻 / 水草 |
Outline of Final Research Achievements |
In order to predict possible changes in the diversity of water weeds as a result of environmental changes in river basins, we conducted field surveys of the water environments and water weeds throughout Yamanashi Prefecture and physiological experiments of native and exotic species. The environments and the species compositions of aquatic plants and macroalgae were clarified at 230 points of rivers and channels in this prefecture. Physiological experiments are still ongoing, but in the future, it will be possible to predict changes in the diversity of aquatic plants and macroalgae in response to such environmental changes by understanding the adaptation characteristics of each species to temperature rise and water pollution.
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Free Research Field |
植物生理生態学
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Academic Significance and Societal Importance of the Research Achievements |
国内でも水生植物や淡水藻の生育地や形態的特徴に関する情報は少なく,国内外の研究機関に保管されている押葉標本やプレパラート標本も少ないので,本研究で作製された標本は今後,国内外に基礎生物学的知見を提供できるだけでなく,DNAの抽出も可能な貴重な資料となり得る。また,水生植物の光合成測定方法として本研究により確立されつつある2つの方法(発生酸素量の測定とクロロフィル蛍光活性の測定)を併せて用いる手法は,対象植物の真の光合成特性を詳らかにすることができるため,環境変動の影響予測が可能となり,保全対策にも役立つであろう。
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