2021 Fiscal Year Final Research Report
Culture collection of terrestrial cyanobacteria related to black stains on Okinawa buildings
| Project/Area Number |
19K06090
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 39060:Conservation of biological resources-related
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | シアノバクテリア / ラン藻 / 気生 / カルチャーコレクション / 分子系統解析 / 未記載分類群 / 分類 / 16S rRNA |
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| Outline of Final Research Achievements |
Terrestrial cyanobacteria grew very slowly, were difficult to purify , and took time to eliminate contaminating fungi. It was revealed that the established strains are highly diverse, with the majority of taxa not described in molecular phylogenetically. Nostoc-like, Scytonema-like, and unicellular taxa are necessary to do taxonomic studies. Although the establishments of terrestrial cyanobacteria strains were successful. It is necessary to examine the secondary metabolites for them before deposition. So we postponed deposit the strains to the public culture collection.
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| Free Research Field |
藻類学
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| Academic Significance and Societal Importance of the Research Achievements |
沖縄の建造物の黒い着色のもとは、気生シアノバクテリアの増殖で、分子遺伝学的に非常に多様で未記載分類群が含まれ、世界的にほとんど利用できる培養株がないことから学術的には分類学的な研究材料として、有効利用の点では紫外線吸収物質や生理活性物質などの有用物質の利用研究に用いることが可能となる培養保存株の確立に成功した。さらに、登録分子情報から、人類が火星で暮らすための研究を行っている米国研究グループからも連携依頼があるなど広がりを見せ、将来にも重要な研究となった。
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