Downloads: 96

Files in This Item:
File Description SizeFormat 
s12870-018-1500-5.pdf2.26 MBAdobe PDFView/Open
Title: Structural diversity across arbuscular mycorrhizal, ectomycorrhizal, and endophytic plant-fungus networks
Authors: Toju, Hirokazu  kyouindb  KAKEN_id  orcid (unconfirmed)
Sato, Hirotoshi  kyouindb  KAKEN_id
Yamamoto, Satoshi
Tanabe, Akifumi S.
Author's alias: 東樹, 宏和
佐藤, 博俊
山本, 哲史
田邉, 晶史
Keywords: Biodiversity
Community ecology
Competitive exclusion
Host specificity or preference
Latitudinal gradients
Plant-fungus interactions
Plant-soil feedback
Species coexistence
Mycorrhizal and endophytic symbiosis
Issue Date: 21-Nov-2018
Publisher: Springer Nature America, Inc
Journal title: BMC Plant Biology
Volume: 18
Thesis number: 292
Abstract: 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.
Rights: © The Author(s). 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, 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 ( applies to the data made available in this article, unless otherwise stated.
DOI(Published Version): 10.1186/s12870-018-1500-5
PubMed ID: 30463525
Appears in Collections:Journal Articles

Show full item record

Export to RefWorks

Export Format: 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.