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タイトル: | Microbial functions and soil nitrogen mineralisation processes in the soil of a cool temperate forest in northern Japan |
著者: | Nakayama, Masataka Imamura, Shihomi Tatsumi, Chikae Taniguchi, Takeshi Tateno, Ryunosuke https://orcid.org/0000-0001-8461-3696 (unconfirmed) |
著者名の別形: | 中山, 理智 今村, 志帆美 龍見, 史恵 谷口, 武士 舘野, 隆之輔 |
キーワード: | Soil microbial community Co-occurrence network Modules Nitrogen cycle |
発行日: | Sep-2021 |
出版者: | Springer Nature |
誌名: | Biogeochemistry |
巻: | 155 |
号: | 3 |
開始ページ: | 359 |
終了ページ: | 379 |
抄録: | There is little knowledge about microbial functional community structures and the relationships between microbial communities and nitrogen transformation processes. Here, we investigated the relationships between soil microbial communities and nitrogen mineralisation potentials in a cool temperate forest throughout the growing season. Microbial communities were assessed by quantification of the total bacterial, archaeal, and fungal gene abundances and the bacterial and archaeal amoA gene abundances, functional predictions of bacteria and fungi, and analysis of the bacterial-fungal co-occurrence network. In mid-summer, ectomycorrhizal fungal abundance was significantly higher, whereas the total bacterial abundance was significantly lower. Bacterial and archaeal amoA gene abundances were also significantly higher in mid-summer. However, regardless of the seasonal fluctuation of microbial gene abundances, the net nitrification and nitrogen mineralisation potential did not show clear seasonality. In the network analysis, the microbial community was divided into 13 modules, which were subgroups assumed to have similar niches. Furthermore, two modules that mainly consisted of microbial species of Proteobacteria and Bacteroidetes were significantly and positively correlated with the net nitrification and mineralisation potentials. Our results indicated that microbial subgroups sharing similar niches, instead of total microbial abundances and functional gene abundances, could be important factors affecting the net nitrogen mineralisation potential. |
著作権等: | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s10533-021-00830-7 The full-text file will be made open to the public on 12 July 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/269312 |
DOI(出版社版): | 10.1007/s10533-021-00830-7 |
出現コレクション: | 学術雑誌掲載論文等 |
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