Afficher la notice abrégée

The impact of parasitism on resource allocation in a fungal host: the case of Cryphonectria parasitica and its mycovirus, Cryphonectria Hypovirus 1

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierHarbor Branch Oceanographic Institute [Fort Pierce]
hal.structure.identifierDepartment of Biology [Gainesville] [UF|Biology]
dc.contributor.authorBRUSINI, Jérémie
hal.structure.identifierDepartment of Biology [Gainesville] [UF|Biology]
dc.contributor.authorWAYNE, Marta L.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierfrom patterns to models in computational biodiversity and biotechnology [PLEIADE]
dc.contributor.authorFRANC, Alain
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorROBIN, Cécile
dc.date.issued2017
dc.description.abstractEnParasites are known to profoundly affect resource allocation in their host. In order to investigate the effects of Cryphonectria Hypovirus 1 (CHV1) on the life-history traits of its fungal host Cryphonectria parasitica, an infection matrix was completed with the cross-infection of six fungal isolates by six different viruses. Mycelial growth, asexual sporulation, and spore size were measured in the 36 combinations, for which horizontal and vertical transmission of the viruses was also assessed. As expected by life-history theory, a significant negative correlation was found between host somatic growth and asexual reproduction in virus-free isolates. Interestingly this trade-off was found to be positive in infected isolates, illustrating the profound changes in host resource allocation induced by CHV1 infection. A significant and positive relationship was also found in infected isolates between vertical transmission and somatic growth. This last relationship suggests that in this system, high levels of virulence could be detrimental to the vertical transmission of the parasite. Those results underscore the interest of studying host–parasite interaction within the life-history theory framework, which might permit a more accurate understanding of the nature of the modifications triggered by parasite infection on host biology.
dc.language.isoen
dc.publisherWiley Open Access
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjecttransmission verticale
dc.subjectcryphonectria hypovirus
dc.subjectrelation hôte-parasite
dc.subjecttransmission horizontale
dc.subject.enhost-parasite relationship
dc.subject.entrade-off
dc.subject.entransmission
dc.subject.envirulence
dc.subject.envertical transmission of disease
dc.subject.enparasite
dc.subject.enlife-history traits
dc.subject.enevolution
dc.subject.enhost
dc.title.enThe impact of parasitism on resource allocation in a fungal host: the case of Cryphonectria parasitica and its mycovirus, Cryphonectria Hypovirus 1
dc.typeArticle de revue
dc.identifier.doi10.1002/ece3.3143
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalEcology and Evolution
bordeaux.page5967–5976
bordeaux.volume7
bordeaux.issue15
bordeaux.peerReviewedoui
hal.identifierhal-01608310
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01608310v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ecology%20and%20Evolution&rft.date=2017&rft.volume=7&rft.issue=15&rft.spage=5967%E2%80%935976&rft.epage=5967%E2%80%935976&rft.au=BRUSINI,%20J%C3%A9r%C3%A9mie&WAYNE,%20Marta%20L.&FRANC,%20Alain&ROBIN,%20C%C3%A9cile&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée