Physiological function of D-Glutamate in the reproduction of kuruma prawn
Project/Area Number |
16K07883
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Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Aquatic life science
|
Research Institution | Shizuoka Institute of Science and Technology |
Principal Investigator |
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Project Period (FY) |
2017-02-23 – 2021-03-31
|
Project Status |
Completed (Fiscal Year 2020)
|
Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
Keywords | D-グルタミン酸 / D-アミノ酸 / クルマエビ |
Outline of Final Research Achievements |
We investigated changes of D-glutamate (D-Glu) content on reproduction in kuruma prawn Marsupenaeus japonicus. In the testis, content of D-Glu increased in seawater temperature rise or unilateral removal of eyestalk. In addition, the young male prawn contained large amounts of D-Glu in the genital tissue, and the activity of glutamate racemase, which catalyzes the interconversion of D- and L-Glu, was high in the testis. These data indicate that D-Glu biosynthesized actively in the stage.
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Academic Significance and Societal Importance of the Research Achievements |
水生無脊椎動物には他の動物に比べて多量のD-アミノ酸が存在しているが、その生理的役割については未だ解明されていない。本研究によりクルマエビに存在するD-Gluがクルマエビの生殖機能に重要な役割を担っており、受精卵形成に関与しているという新たな知見が得られたが、本研究成果は動物におけるD-アミノ酸の未知なる機能を解明するだけにとどまらず、日本の重要な水産資源であるクルマエビの繁殖技術開発においても貢献できるものと考えられる。
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Report
(5 results)
Research Products
(2 results)