Community composition and methane oxidation activity of methanotrophs associated with duckweed in a fresh water lake

• 井口, 博之

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University・Department of Agriculture and Food Technology, Faculty of Bioenvironmental Science, Kyoto University of Advanced Science

• 多賀, 洋輝

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• 小山, 時隆

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• 由里本, 博也

  Department of Botany, Graduate School of Science, Kyoto University

• 阪井, 康能

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

• Sakai, Yasuyoshi

  Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University

書誌事項

タイトル別名

• Community composition and methane oxidation activity of methanotrophs associated with duckweeds in a fresh water lake

抄録

Methanotrophs are the only biological sink of the greenhouse gas methane. To understand the ecological features of methanotrophs in association with plants in the methane emitting environments, we investigated the community composition and methane oxidation of methanotrophs associated with duckweeds in a fresh water lake. Duckweeds collected from Lake Biwa, Japan over three summers showed methane consumption activity between 0.0067 and 0.89 μmol h⁻¹ g⁻¹ (wet weight), with the highest values occurring from the end of July to August. The methanotrophic community on duckweeds consisted primarily of γ-proteobacterial groups including the genera Methylomonas and Methylocaldum. Further analysis of co-cultures of a methanotroph isolate with sterilized duckweed revealed that the duckweed plant as well as the duckweed spent culture supernatant exerted an enhancing effect on methane oxidation. These results indicate that duckweeds not only provide a habitat for methanotrophs but also stimulate methanotrophic growth.

収録刊行物

• Journal of Bioscience and Bioengineering

  Journal of Bioscience and Bioengineering 128 (4), 450-455, 2019-10

  Elsevier B.V.

キーワード

• Methanotroph
• Duckweed
• Methane oxidation
• Methylomonas
• Spirodela

詳細情報

• CRID: 1050845763430299776
• NII論文ID: 120006724639
• NII書誌ID: AA11307678
• ISSN: 13891723
• ISSN: 13474421
• DOI: 10.1016/j.jbiosc.2019.04.009
• HANDLE: 2433/244113
• NDL書誌ID: 030015345
• Web Site: http://id.ndl.go.jp/bib/030015345
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030015345
• Web Site: https://api.elsevier.com/content/article/PII:S1389172318311927?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S1389172318311927?httpAccept=text/plain
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • NDL
  • Crossref
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