2020 Fiscal Year Final Research Report
Identification of the molecules "Homeostatics" that maintain the coral microbial flora produced by coral-associated bacteria
Project/Area Number |
19K15739
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 38020:Applied microbiology-related
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Research Institution | Osaka Prefecture University |
Principal Investigator |
Miura Natsuko 大阪府立大学, 生命環境科学研究科, 助教 (80724559)
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Project Period (FY) |
2019-04-01 – 2021-03-31
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Keywords | サンゴ共在細菌 / 分離共培養 / Ruegeria属細菌 / 環境DNA |
Outline of Final Research Achievements |
Using a small scale co-culture vessel, the inter-species interaction between Ruegeria spp. And V. coralliilyticus was experimentally reconstructed, and the co-culture conditions in which the inter-species interaction was observed were determined. The culture supernatant was fractionated and purified, and candidate molecules that worked between bacterial species were determined using MALDI-MS and LC-MS / MS. Furthermore, using in silico PCR, etc., we developed several probes for specific detection of Ruegeria spp. in field or mixed culture. In addition, several new bacterial strains containing Ruegeria spp. coexisting with G. fascicularis were isolated and deposited.
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Free Research Field |
応用微生物学
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Academic Significance and Societal Importance of the Research Achievements |
本研究では共培養容器を用いて、特定の物質を介した2種の細菌間相互作用が実験的に再構築可能であることを示し、各種菌種間相互作用の解明に向けて新たなアプローチを提唱した。また、これまでサンゴ微生物叢における機能がほぼ未解明であったRuegeria 属細菌のサンゴ病原菌に対する効果を検証することで、本菌並びに本菌が産生する生理活性物質の利用可能性を示した。さらに、本研究により、これまで入手が非常に困難であったRuegeria 属細菌を含む複数のサンゴ共在細菌を研究者が自由に入手・使用することが可能となった。こうした成果は、国際的なサンゴ共在微生物研究の推進に貢献することが期待できる。
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