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Mycorrhizae support oaks growing in a phylogenetically distant neighbourhood

hal.structure.identifierStructure et Dynamique de la Diversité
dc.contributor.authorYGUEL, Benjamin
hal.structure.identifierZurich Basel Plant Science Center
dc.contributor.authorCOURTY, Pierre-Emmanuel
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorJACTEL, Hervé
hal.structure.identifierState Key Laboratory of Vegetation and Environmental Change
dc.contributor.authorPAN, Xu
hal.structure.identifierJohann-Friedrich Blumenbach Institut für Zoologie und Anthropologie
dc.contributor.authorBUTENSCHOEN, Olaf
hal.structure.identifierSustainable Soils and Grassland Systems Department
dc.contributor.authorMURRAY, Phil
hal.structure.identifierEcosystèmes, biodiversité, évolution [Rennes] [ECOBIO]
dc.contributor.authorPRINZING, Andreas
dc.date.issued2014-11
dc.identifier.issn0038-0717
dc.description.abstractEnHost-plants may rarely leave their ancestral niche and in which case they tend to be surrounded by phylogenetically distant neighbours. Phylogenetically isolated host-plants might share few mutualists with their neighbours and might suffer from a decrease in mutualist support. In addition host plants leaving their ancestral niche might face a deterioration of their abiotic and biotic environment and might hence need to invest more into mutualist partners. We tested whether phylogenetic isolation of hosts from neighbours decreases or increases abundance and activity of their mutualists and whether mutualist activity may help to compensate deterioration of the environment. We study oak-hosts and their ectomycorrhizal fungi mutualists established in the litter layer formed by the phylogenetically closely or distantly related neighbourhood. We find that oaks surrounded by phylogenetically distant neighbours show increased abundance and enzymatic activity of ectomycorrhizal fungi in the litter. Moreover, oaks surrounded by phylogenetically distant neighbours also show delayed budburst but ectomycorrhizal fungi activity partly compensates this negative effect of phylogenetic isolation. This suggests decreased nutrient availability in a phylogenetically distant litter partly compensated by increased litter-degradation by ectomycorrhizal fungi activity. Most observed effects of phylogenetic isolation cannot be explained by a change in baseline soil fertility (as reflected by nutritional status of fresh oak litter, or soil microbial biomass and activity) nor by simple reduction of percentages of oak neighbours, nor by the presence of gymnosperms. Our results show that colonizing new niche represented by the presence of distantly related neighbours may delay plant phenology but may be supported by mycorrhizal mutualists. Studies on other host-plant species are required to generalize our findings.
dc.language.isoen
dc.publisherElsevier
dc.subject.encommunity phylogeny
dc.subject.enmycorrhiza
dc.subject.enforest trees
dc.subject.enenzymatic activity
dc.subject.enbreaking with niche conservatism
dc.subject.enmutualism strength
dc.subject.enbudburst phenology
dc.title.enMycorrhizae support oaks growing in a phylogenetically distant neighbourhood
dc.typeArticle de revue
dc.identifier.doi10.1016/j.soilbio.2014.08.003
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalSoil Biology and Biochemistry
bordeaux.page204-212
bordeaux.volume78
bordeaux.peerReviewedoui
hal.identifierhal-01072113
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01072113v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Soil%20Biology%20and%20Biochemistry&rft.date=2014-11&rft.volume=78&rft.spage=204-212&rft.epage=204-212&rft.eissn=0038-0717&rft.issn=0038-0717&rft.au=YGUEL,%20Benjamin&COURTY,%20Pierre-Emmanuel&JACTEL,%20Herv%C3%A9&PAN,%20Xu&BUTENSCHOEN,%20Olaf&rft.genre=article


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