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Insights into the potential for mutualistic and harmful host‐microbe interactions affecting brown alga freshwater acclimation

hal.structure.identifierLaboratoire de Biologie Intégrative des Modèles Marins [LBI2M]
dc.contributor.authorKLEINJAN, Hetty
hal.structure.identifierPleiade, from patterns to models in computational biodiversity and biotechnology [PLEIADE]
hal.structure.identifierDynamics, Logics and Inference for biological Systems and Sequences [Dyliss]
dc.contributor.authorFRIOUX, Clémence
hal.structure.identifierFriedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany]
dc.contributor.authorCALIFANO, Gianmaria
hal.structure.identifierInstitut de Recherche en Informatique et Systèmes Aléatoires [IRISA]
hal.structure.identifierDynamics, Logics and Inference for biological Systems and Sequences [Dyliss]
dc.contributor.authorAITE, Méziane
hal.structure.identifierInstitut de Recherche en Informatique et Systèmes Aléatoires [IRISA]
hal.structure.identifierDynamics, Logics and Inference for biological Systems and Sequences [Dyliss]
dc.contributor.authorFREMY, Enora
hal.structure.identifierLaboratoire de Biologie Intégrative des Modèles Marins [LBI2M]
dc.contributor.authorKARIMI, Elham
hal.structure.identifierABiMS - Informatique et bioinformatique = Analysis and Bioinformatics for Marine Science [ABIMS]
hal.structure.identifierFédération de recherche de Roscoff [FR2424]
hal.structure.identifierStation biologique de Roscoff = Roscoff Marine Station [SBR]
dc.contributor.authorCORRE, Erwan
hal.structure.identifierFriedrich-Schiller-Universität = Friedrich Schiller University Jena [Jena, Germany]
dc.contributor.authorWICHARD, Thomas
hal.structure.identifierInstitut de Recherche en Informatique et Systèmes Aléatoires [IRISA]
hal.structure.identifierDynamics, Logics and Inference for biological Systems and Sequences [Dyliss]
dc.contributor.authorSIEGEL, Anne
hal.structure.identifierLaboratoire de Biologie Intégrative des Modèles Marins [LBI2M]
dc.contributor.authorBOYEN, Catherine
hal.structure.identifierLaboratoire de Biologie Intégrative des Modèles Marins [LBI2M]
dc.contributor.authorDITTAMI, Simon
dc.date2022
dc.date.issued2022
dc.identifier.issn0962-1083
dc.description.abstractEnMicrobes can modify their hosts' stress tolerance, thus potentially enhancing their ecological range. An example of such interactions is Ectocarpus subulatus, one of the few freshwater-tolerant brown algae. This tolerance is partially due to its (un)cultivated microbiome. We investigated this phenomenon by modifying the microbiome of laboratory-grown E. subulatus using mild antibiotic treatments, which affected its ability to grow in low salinity. Low salinity acclimation of these algal-bacterial associations was then compared. Salinity significantly impacted bacterial and viral gene expression, albeit in different ways across algal-bacterial communities. In contrast, gene expression of the host and metabolite profiles were affected almost exclusively in the freshwater-intolerant algal-bacterial communities. We found no evidence of bacterial protein production that would directly improve algal stress tolerance. However, vitamin K synthesis is one possible bacterial service missing specifically in freshwater-intolerant cultures in low salinity. In this condition, we also observed a relative increase in bacterial transcriptomic activity and the induction of microbial genes involved in the biosynthesis of the autoinducer AI-1, a quorum-sensing regulator. This could have resulted in dysbiosis by causing a shift in bacterial behavior in the intolerant algal-bacterial community. Together, these results provide two promising hypotheses to be examined by future targeted experiments. Although they apply only to the specific study system, they offer an example of how bacteria may impact their host's stress response.
dc.description.sponsorshipBiotechnologies pour la valorisation des macroalgues - ANR-10-BTBR-0004
dc.language.isoen
dc.publisherWiley
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enbrown algae
dc.subject.enholobiont
dc.subject.enhost–microbiome interaction
dc.subject.enlow salinity acclimation
dc.subject.enmetabolic networks
dc.subject.enmetabolite profiling
dc.subject.enmeta-transcriptomics
dc.subject.envirome
dc.title.enInsights into the potential for mutualistic and harmful host‐microbe interactions affecting brown alga freshwater acclimation
dc.typeArticle de revue
dc.identifier.doi10.1111/mec.16766
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Génomique, Transcriptomique et Protéomique [q-bio.GN]
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Interactions entre organismes
dc.description.sponsorshipEuropeMethods of researching pupal history involving CT-scanning: A novel approach to death time estimations
bordeaux.journalMolecular Ecology
bordeaux.page703-723
bordeaux.volume32
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-03868898
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03868898v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecular%20Ecology&rft.date=2022&rft.volume=32&rft.issue=3&rft.spage=703-723&rft.epage=703-723&rft.eissn=0962-1083&rft.issn=0962-1083&rft.au=KLEINJAN,%20Hetty&FRIOUX,%20Cl%C3%A9mence&CALIFANO,%20Gianmaria&AITE,%20M%C3%A9ziane&FREMY,%20Enora&rft.genre=article


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