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タイトル: | Structural diversity across arbuscular mycorrhizal, ectomycorrhizal, and endophytic plant-fungus networks |
著者: | Toju, Hirokazu https://orcid.org/0000-0002-3362-3285 (unconfirmed) Sato, Hirotoshi https://orcid.org/0000-0003-4489-6569 (unconfirmed) Yamamoto, Satoshi Tanabe, Akifumi S. |
著者名の別形: | 東樹, 宏和 佐藤, 博俊 山本, 哲史 田邉, 晶史 |
キーワード: | Biodiversity Community ecology Competitive exclusion Host specificity or preference Latitudinal gradients Microbiomes Plant-fungus interactions Plant-soil feedback Species coexistence Mycorrhizal and endophytic symbiosis |
発行日: | 21-Nov-2018 |
出版者: | Springer Nature America, Inc |
誌名: | BMC Plant Biology |
巻: | 18 |
論文番号: | 292 |
抄録: | Background: Below-ground linkage between plant and fungal communities is one of the major drivers of terrestrial ecosystem dynamics. However, we still have limited knowledge of how such plant-fungus associations vary in their community-scale properties depending on fungal functional groups and geographic locations. Methods: By compiling a high-throughput sequencing dataset of root-associated fungi in eight forests along the Japanese Archipelago, we performed a comparative analysis of arbuscular mycorrhizal, ectomycorrhizal, and saprotrophic/endophytic associations across a latitudinal gradient from cool-temperate to subtropical regions. Results: In most of the plant-fungus networks analyzed, host-symbiont associations were significantly specialized but lacked "nested" architecture, which has been commonly reported in plant-pollinator and plant-seed disperser networks. In particular, the entire networks involving all functional groups of plants and fungi and partial networks consisting of ectomycorrhizal plant and fungal species/taxa displayed "anti-nested" architecture (i.e., negative nestedness scores) in many of the forests examined. Our data also suggested that geographic factors affected the organization of plant-fungus network structure. For example, the southernmost subtropical site analyzed in this study displayed lower network-level specificity of host-symbiont associations and higher (but still low) nestedness than northern localities. Conclusions: Our comparative analyses suggest that arbuscular mycorrhizal, ectomycorrhizal, and saprotrophic/endophytic plant-fungus associations often lack nested network architecture, while those associations can vary, to some extent, in their community-scale properties along a latitudinal gradient. Overall, this study provides a basis for future studies that will examine how different types of plant-fungus associations collectively structure terrestrial ecosystems. |
著作権等: | © The Author(s). 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
URI: | http://hdl.handle.net/2433/235716 |
DOI(出版社版): | 10.1186/s12870-018-1500-5 |
PubMed ID: | 30463525 |
出現コレクション: | 学術雑誌掲載論文等 |
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