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The role of local environment and geographical distance in determining community composition of arbuscular mycorrhizal fungi at the landscape scale.
ISME J. 2013 Mar; 7(3):498-508.IJ

Abstract

Arbuscular fungi have a major role in directing the functioning of terrestrial ecosystems yet little is known about their biogeographical distribution. The Baas-Becking hypothesis ('everything is everywhere, but, the environment selects') was tested by investigating the distribution of arbuscular mycorrhizal fungi (AMF) at the landscape scale and the influence of environmental factors and geographical distance in determining community composition. AMF communities in Trifolium repens and Lolium perenne roots were assessed in 40 geographically dispersed sites in Ireland representing different land uses and soil types. Field sampling and laboratory bioassays were used, with AMF communities characterised using 18S rRNA terminal-restriction fragment length polymorphism. Landscape-scale distribution of AMF was driven by the local environment. AMF community composition was influenced by abiotic variables (pH, rainfall and soil type), but not land use or geographical distance. Trifolium repens and L. perenne supported contrasting communities of AMF, and the communities colonising each plant species were consistent across pasture habitats and over distance. Furthermore, L. perenne AMF communities grouped by soil type within pasture habitats. This is the largest and most comprehensive study that has investigated the landscape-scale distribution of AMF. Our findings support the Baas-Becking hypothesis at the landscape scale and demonstrate the strong influence the local environment has on determining AMF community composition.

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Authors+Show Affiliations

Hazard C
School of Biology and Environmental Science, University College Dublin, Dublin, Ireland. christina.hazard@abdn.ac.uk
Gosling P
No affiliation info available
van der Gast CJ
No affiliation info available
Mitchell DT
No affiliation info available
Doohan FM
No affiliation info available
Bending GD
No affiliation info available

MeSH

BiodiversityEcosystemIrelandLoliumMycorrhizaePlant RootsPolymorphism, Restriction Fragment LengthRNA, Ribosomal, 18SSoilSoil MicrobiologyTrifolium

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23096401

Citation

Hazard, Christina, et al. "The Role of Local Environment and Geographical Distance in Determining Community Composition of Arbuscular Mycorrhizal Fungi at the Landscape Scale." The ISME Journal, vol. 7, no. 3, 2013, pp. 498-508.
Hazard C, Gosling P, van der Gast CJ, et al. The role of local environment and geographical distance in determining community composition of arbuscular mycorrhizal fungi at the landscape scale. ISME J. 2013;7(3):498-508.
Hazard, C., Gosling, P., van der Gast, C. J., Mitchell, D. T., Doohan, F. M., & Bending, G. D. (2013). The role of local environment and geographical distance in determining community composition of arbuscular mycorrhizal fungi at the landscape scale. The ISME Journal, 7(3), 498-508. https://doi.org/10.1038/ismej.2012.127
Hazard C, et al. The Role of Local Environment and Geographical Distance in Determining Community Composition of Arbuscular Mycorrhizal Fungi at the Landscape Scale. ISME J. 2013;7(3):498-508. PubMed PMID: 23096401.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The role of local environment and geographical distance in determining community composition of arbuscular mycorrhizal fungi at the landscape scale. AU - Hazard,Christina, AU - Gosling,Paul, AU - van der Gast,Christopher J, AU - Mitchell,Derek T, AU - Doohan,Fiona M, AU - Bending,Gary D, Y1 - 2012/10/25/ PY - 2012/10/26/entrez PY - 2012/10/26/pubmed PY - 2014/1/31/medline SP - 498 EP - 508 JF - The ISME journal JO - ISME J VL - 7 IS - 3 N2 - Arbuscular fungi have a major role in directing the functioning of terrestrial ecosystems yet little is known about their biogeographical distribution. The Baas-Becking hypothesis ('everything is everywhere, but, the environment selects') was tested by investigating the distribution of arbuscular mycorrhizal fungi (AMF) at the landscape scale and the influence of environmental factors and geographical distance in determining community composition. AMF communities in Trifolium repens and Lolium perenne roots were assessed in 40 geographically dispersed sites in Ireland representing different land uses and soil types. Field sampling and laboratory bioassays were used, with AMF communities characterised using 18S rRNA terminal-restriction fragment length polymorphism. Landscape-scale distribution of AMF was driven by the local environment. AMF community composition was influenced by abiotic variables (pH, rainfall and soil type), but not land use or geographical distance. Trifolium repens and L. perenne supported contrasting communities of AMF, and the communities colonising each plant species were consistent across pasture habitats and over distance. Furthermore, L. perenne AMF communities grouped by soil type within pasture habitats. This is the largest and most comprehensive study that has investigated the landscape-scale distribution of AMF. Our findings support the Baas-Becking hypothesis at the landscape scale and demonstrate the strong influence the local environment has on determining AMF community composition. SN - 1751-7370 UR - https://www.unboundmedicine.com/medline/citation/23096401/The_role_of_local_environment_and_geographical_distance_in_determining_community_composition_of_arbuscular_mycorrhizal_fungi_at_the_landscape_scale_ L2 - https://doi.org/10.1038/ismej.2012.127 DB - PRIME DP - Unbound Medicine ER -