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2023 Fiscal Year Final Research Report

Revealing the symbiotic mechanisms from useful metabolites of dinoflagellates in corals

Research Project

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Project/Area Number 20K05798
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38020:Applied microbiology-related
Research InstitutionOkinawa Institute of Science and Technology Graduate University

Principal Investigator

Shoguchi Eiichi  沖縄科学技術大学院大学, マリンゲノミックスユニット, グループリーダー (90378563)

Co-Investigator(Kenkyū-buntansha) 濱田 麻友子  岡山大学, 自然科学学域, 准教授 (40378584)
Project Period (FY) 2020-04-01 – 2024-03-31
Keywords海洋生態系 / ゲノム / サンゴ白化現象 / 褐虫藻 / アルファプロテオバクテリア / 高温耐性 / 紫外線吸収物質 / 抗酸化作用
Outline of Final Research Achievements

Coral symbiotic algae are diverse and more than 100 species may be included. In this study, the genome of a bleaching-resistant algae isolated from corals in Okinawa has been decoded. Interestingly, the genome of this bleaching-resistant alga contains a mycosporine-like amino acid synthesis gene cluster, which has been involved in UV absorption and antioxidant properties. Genome analysis also revealed that the main bacteria co-occurring with symbiotic algae when cultured in antibiotic-containing media are alpha-proteobacteria.

Free Research Field

ゲノム科学

Academic Significance and Societal Importance of the Research Achievements

サンゴと褐虫藻の共生関係が崩壊しておこるサンゴ白化現象により、世界中のサンゴが死んでしまっている。白化耐性褐虫藻のゲノムや褐虫藻に共在するバクテリアのゲノムの研究は、サンゴの減少を食い止めるための対策立案へとつながる可能性があるため、重要であると考えられる。

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Published: 2025-01-30  

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