English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/172407
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Ectomycorrhizal Fungal Communities and Their Functional Traits Mediate Plant–Soil Interactions in Trace Element Contaminated Soils

AuthorsGil Martínez, Marta ; López-García, A. ; Domínguez, María Teresa ; Navarro-Fernández, Carmen M. ; Kjøller, Rasmus; Tibbett, Mark; Marañón, Teodoro
KeywordsEcosystem processes
Heavy metal
Microbiome
Phytoremediation
Quercus ilex subsp
Ballota (holm oak)
Root economics spectrum
Symbiosis
Trace element transfer
Issue Date20-Nov-2018
PublisherFrontiers Media
CitationFrontiers in Plant Science (9) 1682 (2018)
AbstractThere is an increasing consensus that microbial communities have an important role in mediating ecosystem processes. Trait-based ecology predicts that the impact of the microbial communities on ecosystem functions will be mediated by the expression of their traits at community level. The link between the response of microbial community traits to environmental conditions and its effect on plant functioning is a gap in most current microbial ecology studies. In this study, we analyzed functional traits of ectomycorrhizal fungal species in order to understand the importance of their community assembly for the soil–plant relationships in holm oak trees (Quercus ilex subsp. ballota) growing in a gradient of exposure to anthropogenic trace element (TE) contamination after a metalliferous tailings spill. Particularly, we addressed how the ectomycorrhizal composition and morphological traits at community level mediate plant response to TE contamination and its capacity for phytoremediation. Ectomycorrhizal fungal taxonomy and functional diversity explained a high proportion of variance of tree functional traits, both in roots and leaves. Trees where ectomycorrhizal fungal communities were dominated by the abundant taxa Hebeloma cavipes and Thelephora terrestris showed a conservative root economics spectrum, while trees colonized by rare taxa presented a resource acquisition strategy. Conservative roots presented ectomycorrhizal functional traits characterized by high rhizomorphs formation and low melanization which may be driven by resource limitation. Soil-to-root transfer of TEs was explained substantially by the ectomycorrhizal fungal species composition, with the highest transfer found in trees whose roots were colonized by Hebeloma cavipes. Leaf phosphorus was related to ectomycorrhizal species composition, specifically higher leaf phosphorus was related to the root colonization by Thelephora terrestris. These findings support that ectomycorrhizal fungal community composition and their functional traits mediate plant performance in metal-contaminated soils, and have a high influence on plant capacity for phytoremediation of contaminants. The study also corroborates the overall effects of ectomycorrhizal fungi on ecosystem functioning through their mediation over the plant economics spectrum.
Description15 páginas.-- 3 figuras.-- 3 tablas.-- referencias.-- The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fpls.2018.01682/full#supplementary-material
Publisher version (URL)http://dx.doi.org/10.3389/fpls.2018.01682
URIhttp://hdl.handle.net/10261/172407
DOI10.3389/fpls.2018.01682
E-ISSN1664-462X
Appears in Collections:(IRNAS) Artículos
Files in This Item:
File Description SizeFormat 
Ectomycorrhizal_Fungal_Communities_Functional_2018_OA.pdf1,25 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.