Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology

To advance understanding of the mechanisms underpinning the coexistence of Mediterranean oak species, we conducted a year-long analysis of the production, architecture, and mycorrhization status of the fine roots of a mixed evergreen (Quercus ilex) and winter deciduous (Quercus faginea) oak stand. W...

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Detalhes bibliográficos
Autores: Coll Mir, Lluís, Camarero Martínez, Jesús Julio, Martínez de Aragón, Juan
Tipo de documento: artigo
Estado:Versión aceptada para publicación
Data de publicação:2015
País:España
Recursos:Universitat de Lleida (UdL)
Repositório:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/68373
Acesso em linha:https://doi.org/10.2980/19-3-3488
http://hdl.handle.net/10459.1/68373
Access Level:Acceso aberto
Palavra-chave:Ectomycorrhizae
Fine roots
Phenology
Quercus faginea
Quercus ilex
Root traits
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oai_identifier_str oai:repositori.udl.cat:10459.1/68373
network_acronym_str ES
network_name_str España
repository_id_str
dc.title.none.fl_str_mv Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
title Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
spellingShingle Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
Coll Mir, Lluís
Ectomycorrhizae
Fine roots
Phenology
Quercus faginea
Quercus ilex
Root traits
title_short Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
title_full Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
title_fullStr Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
title_full_unstemmed Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
title_sort Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenology
dc.creator.none.fl_str_mv Coll Mir, Lluís
Camarero Martínez, Jesús Julio
Martínez de Aragón, Juan
author Coll Mir, Lluís
author_facet Coll Mir, Lluís
Camarero Martínez, Jesús Julio
Martínez de Aragón, Juan
author_role author
author2 Camarero Martínez, Jesús Julio
Martínez de Aragón, Juan
author2_role author
author
dc.subject.none.fl_str_mv Ectomycorrhizae
Fine roots
Phenology
Quercus faginea
Quercus ilex
Root traits
topic Ectomycorrhizae
Fine roots
Phenology
Quercus faginea
Quercus ilex
Root traits
description To advance understanding of the mechanisms underpinning the coexistence of Mediterranean oak species, we conducted a year-long analysis of the production, architecture, and mycorrhization status of the fine roots of a mixed evergreen (Quercus ilex) and winter deciduous (Quercus faginea) oak stand. We used the ingrowth bag technique to sample the fine roots produced by each species in spring, summer, and winter. For each season, root architecture traits (specific root length, root diameter, root tips) and variables associated to root ectomycorrhizal status were measured in the laboratory. Results showed a marked seasonality in the fine root architecture, including more fine root tips and longer roots per unit of weight formed in spring and summer, revealing a capacity in Mediterranean oak species to modify root architecture in spring and suggesting the possibility of increased resource capture in summer. Fine root ectomycorrhizal status was comparable between species and also showed marked seasonality: we found a high percentage of roots colonized by dead ectomycorrhizas in winter but low ectomycorrhizal colonization rates in summer. Quercus ilex produced greater amounts of fine roots than Q. faginea (particularly during spring), suggesting greater competitive ability in the former species for belowground resources.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.2980/19-3-3488
http://hdl.handle.net/10459.1/68373
url https://doi.org/10.2980/19-3-3488
http://hdl.handle.net/10459.1/68373
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN//CGL2008-04847-C02-01
info:eu-repo/grantAgreement/MICINN//CGL2010-16880
info:eu-repo/grantAgreement/MINECO//CGL2011-26654
Versió postprint del document publicat a: https://doi.org/10.2980/19-3-3488
Ecoscience, 2012, vol. 19, núm. 3, p. 238-245
dc.rights.none.fl_str_mv (c) Taylor & Francis, 2015
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Taylor & Francis, 2015
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Fine root seasonal dynamics, plasticity, and mycorrhization in 2 coexisting Mediterranean oaks with contrasting aboveground phenologyColl Mir, LluísCamarero Martínez, Jesús JulioMartínez de Aragón, JuanEctomycorrhizaeFine rootsPhenologyQuercus fagineaQuercus ilexRoot traitsTo advance understanding of the mechanisms underpinning the coexistence of Mediterranean oak species, we conducted a year-long analysis of the production, architecture, and mycorrhization status of the fine roots of a mixed evergreen (Quercus ilex) and winter deciduous (Quercus faginea) oak stand. We used the ingrowth bag technique to sample the fine roots produced by each species in spring, summer, and winter. For each season, root architecture traits (specific root length, root diameter, root tips) and variables associated to root ectomycorrhizal status were measured in the laboratory. Results showed a marked seasonality in the fine root architecture, including more fine root tips and longer roots per unit of weight formed in spring and summer, revealing a capacity in Mediterranean oak species to modify root architecture in spring and suggesting the possibility of increased resource capture in summer. Fine root ectomycorrhizal status was comparable between species and also showed marked seasonality: we found a high percentage of roots colonized by dead ectomycorrhizas in winter but low ectomycorrhizal colonization rates in summer. Quercus ilex produced greater amounts of fine roots than Q. faginea (particularly during spring), suggesting greater competitive ability in the former species for belowground resources.Pour accroître notre compréhension des mécanismes supportant la coexistence d'espèces méditerranéennes de chênes, nous avons analysé sur une année la production, l'architecture et le statut mycorhizien des radicelles d'un peuplement mixte de chênes à feuilles persistantes (Quercus ilex) et caduques (Quercus faginea). Nous avons utilisé la technique du sac de croissance pour échantillonner les radicelles produites par chaque espèce au printemps, à l'été et en hiver. Pour chaque saison, différents traits architecturaux des racines (longueur spécifique de la racine, diamètre de la racine, apex racinaire) et des variables associées au statut ectomycorhizien des racines ont été mesurés en laboratoire. Les résultats ont démontré une saisonnalité marquée dans l'architecture des radicelles. Au printemps et à l'été, une plus grande quantité d'apex racinaires et des racines plus longues par unité de poids étaient formées, révélant ainsi la capacité de ces espèces méditerranéennes de chênes à modifier l'architecture racinaire au printemps et suggérant une meilleure acquisition des ressources en été. Le statut ectomycorhizien des radicelles était comparable entre les espèces et montrait également une saisonnalité marquée puisque nous avons trouvé un pourcentage élevé de racines colonisées par des ectomycorhizes mortes en hiver, mais en été les taux de colonisation par des ectomycorhizes étaient faibles. Q. ilex a produit plus de radicelles que Q. faginea (particulièrement au printemps) ce qui suggère une plus grande compétitivité de la première pour les ressources souterraines.This study was possible thanks to the collaboration within the GLOBIMED network (www.globimed.net) and it was supported by the MCI (Ministerio de Ciencia e Innovación, Spain) CGL2008-04847-C02-01/BOS, CGL2010-16880/BOS and CGL2011-26654 projects. The MCI provided LC with support through a Ramón y Cajal contract (RYC-2009-04985). JJC acknowledges the support of ARAID.Taylor & Francis2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttps://doi.org/10.2980/19-3-3488http://hdl.handle.net/10459.1/68373reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MICINN//CGL2008-04847-C02-01info:eu-repo/grantAgreement/MICINN//CGL2010-16880info:eu-repo/grantAgreement/MINECO//CGL2011-26654Versió postprint del document publicat a: https://doi.org/10.2980/19-3-3488Ecoscience, 2012, vol. 19, núm. 3, p. 238-245(c) Taylor & Francis, 2015info:eu-repo/semantics/openAccessoai:repositori.udl.cat:10459.1/683732026-06-24T12:42:17Z
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