ID | 56311 |
フルテキストURL | |
著者 |
Hamada, Mayuko
Ushimado Marine Institute, Okayama University
Schröder, Katja
Interdisciplinary Research Center, Kiel Life Science, Kiel University
Bathia, Jay
Interdisciplinary Research Center, Kiel Life Science, Kiel University
Kürn, Ulrich
Interdisciplinary Research Center, Kiel Life Science, Kiel University
Fraune, Sebastian
Interdisciplinary Research Center, Kiel Life Science, Kiel University
Khalturina, Mariia
Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University
Khalturin, Konstantin
Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University
Shinzato, Chuya
Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University
Satoh, Nori
Marine Genomics Unit, Okinawa Institute of Science and Technology Graduate University
Bosch, Thomas CG
Interdisciplinary Research Center, Kiel Life Science, Kiel University
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抄録 | Many multicellular organisms rely on symbiotic associations for support of metabolic activity, protection, or energy. Understanding the mechanisms involved in controlling such interactions remains a major challenge. In an unbiased approach we identified key players that control the symbiosis between Hydra viridissima and its photosynthetic symbiont Chlorella sp. A99. We discovered significant up-regulation of Hydra genes encoding a phosphate transporter and glutamine synthetase suggesting regulated nutrition supply between host and symbionts. Interestingly, supplementing the medium with glutamine temporarily supports in vitro growth of the otherwise obligate symbiotic Chlorella, indicating loss of autonomy and dependence on the host. Genome sequencing of Chlorella sp. A99 revealed a large number of amino acid transporters and a degenerated nitrate assimilation pathway, presumably as consequence of the adaptation to the host environment. Our observations portray ancient symbiotic interactions as a codependent partnership in which exchange of nutrients appears to be the primary driving force.
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キーワード | Chlorella
Hydra
evolutionary biology
genome
nitrogen metabolism
symbiosis
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発行日 | 2018-03-31
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出版物タイトル |
eLife
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巻 | 7巻
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出版者 | eLife Sciences Publications
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開始ページ | e35122
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ISSN | 2050-084X
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資料タイプ |
学術雑誌論文
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言語 |
英語
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OAI-PMH Set |
岡山大学
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論文のバージョン | publisher
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PubMed ID | |
DOI | |
Web of Science KeyUT | |
関連URL | isVersionOf https://doi.org/10.7554/eLife.35122
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