Ecological Perspectives on Microbes Involved in N-Cycling

DOI Web Site Web Site PubMed 被引用文献24件 参考文献136件 オープンアクセス
  • Isobe Kazuo
    Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • Ohte Nobuhito
    Department of Forest Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo

書誌事項

公開日
2014
資源種別
journal article
DOI
  • 10.1264/jsme2.me13159
公開者
日本微生物生態学会 / 日本土壌微生物学会 / Taiwan Society of Microbial Ecology / 植物微生物研究会 / 極限環境生物学会

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説明

Nitrogen (N) cycles have been directly linked to the functional stability of ecosystems because N is an essential element for life. Furthermore, the supply of N to organisms regulates primary productivity in many natural ecosystems. Microbial communities have been shown to significantly contribute to N cycles because many N-cycling processes are microbially mediated. Only particular groups of microbes were implicated in N-cycling processes, such as nitrogen fixation, nitrification, and denitrification, until a few decades ago. However, recent advances in high-throughput sequencing technologies and sophisticated isolation techniques have enabled microbiologists to discover that N-cycling microbes are unexpectedly diverse in their functions and phylogenies. Therefore, elucidating the link between biogeochemical N-cycling processes and microbial community dynamics can provide a more mechanistic understanding of N cycles than the direct observation of N dynamics. In this review, we summarized recent findings that characterized the microbes governing novel N-cycling processes. We also discussed the ecological role of N-cycling microbial community dynamics, which is essential for advancing our understanding of the functional stability of ecosystems.

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