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Title: Microbial functions and soil nitrogen mineralisation processes in the soil of a cool temperate forest in northern Japan
Authors: Nakayama, Masataka
Imamura, Shihomi
Tatsumi, Chikae
Taniguchi, Takeshi
Tateno, Ryunosuke  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 中山, 理智
今村, 志帆美
龍見, 史恵
谷口, 武士
舘野, 隆之輔
Keywords: Soil microbial community
Co-occurrence network
Nitrogen cycle
Issue Date: Sep-2021
Publisher: Springer Nature
Journal title: Biogeochemistry
Volume: 155
Issue: 3
Start page: 359
End page: 379
Abstract: 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.
Rights: 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:
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。
DOI(Published Version): 10.1007/s10533-021-00830-7
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