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Oak powdery mildew changes growth patterns in its host tree: host tolerance response and potential manipulation of host physiology by the parasite

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDESPREZ-LOUSTAU, Marie-Laure
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorSAINT-JEAN, Gilles
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBARRÈS, Benoît
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDANTEC, Cécile Françoise
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDUTECH, Cyril
dc.date.accessioned2022-10-12T13:37:22Z
dc.date.available2022-10-12T13:37:22Z
dc.date.issued2014-07
dc.identifier.issn1286-4560
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/158406
dc.description.abstractEn& Context Parasites can induce strong effects on their host's growth, not only as a result of host resource exploitation (growth loss) but also with a potential adaptive value for host (tolerance response) and themselves (increased transmission). & Aims We assessed these three types of phenotypic changes in oak seedlings infected by powdery mildew. & Methods A manipulative field experiment with three levels of parasite inoculum was designed in order to tease apart infection from genetic effects on oak growth. Seedlings were monitored during 3 years for height growth, phenology and infection. & Results Powdery mildew infection induced both significant growth loss and qualitative changes in plant architecture. The most striking and unexpected change was increased growth polycyclism in infected seedlings. This benefitted both the host as a form of compensation for infection-caused height loss, and the pathogen, by increasing sporulation. & Conclusion The study highlights the effect of parasites in the expression of plant phenotypic traits, such as phenology and ultimately tree architecture. Both host tolerance and par-asitic manipulation may be involved in the observed changes in growth patterns. These results suggest a complex interplay between development and defence in trees and emphasize the need to better assess tolerance mechanisms when considering the defence strategies of trees against pathogens.
dc.language.isoen
dc.publisherSpringer Nature (since 2011)/EDP Science (until 2010)
dc.rights.urihttp://hal.archives-ouvertes.fr/licences/copyright/
dc.subject.entolerance
dc.subject.enphenology
dc.subject.enpolycyclism
dc.subject.enrhythmic growth
dc.subject.enpowdery mildew
dc.subject.enoak
dc.title.enOak powdery mildew changes growth patterns in its host tree: host tolerance response and potential manipulation of host physiology by the parasite
dc.typeArticle de revue
dc.identifier.doi10.1007/s13595-014-0364-6
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalAnnals of Forest Science
bordeaux.page563 - 573
bordeaux.volume71
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue5
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01102591
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01102591v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Annals%20of%20Forest%20Science&rft.date=2014-07&rft.volume=71&rft.issue=5&rft.spage=563%20-%20573&rft.epage=563%20-%20573&rft.eissn=1286-4560&rft.issn=1286-4560&rft.au=DESPREZ-LOUSTAU,%20Marie-Laure&SAINT-JEAN,%20Gilles&BARR%C3%88S,%20Beno%C3%AEt&DANTEC,%20C%C3%A9cile%20Fran%C3%A7oise&DUTECH,%20Cyril&rft.genre=article


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