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Impacts of Atmospheric CO2 and Soil Nutritional Value on Plant Responses to Rhizosphere Colonization by Soil Bacteria

hal.structure.identifierDepartment of Animal and Plant Sciences
hal.structure.identifierUniversity of Sheffield
dc.contributor.authorWILLIAMS, Alex
hal.structure.identifierBiologie du fruit et pathologie [BFP]
hal.structure.identifierUniversity of Sheffield
dc.contributor.authorPÉTRIACQ, Pierre
hal.structure.identifierDepartment of Animal and Plant Sciences
dc.contributor.authorBEERLING, David J
hal.structure.identifierDepartment of Animal and Plant Sciences
dc.contributor.authorCOTTON, T E Anne
hal.structure.identifierDepartment of Animal and Plant Sciences
hal.structure.identifierUniversity of Sheffield
dc.contributor.authorTON, Jurriaan
dc.date.issued2018
dc.identifier.issn1664-462X
dc.description.abstractEnConcerns over rising atmospheric CO2 concentrations have led to growing interest in the effects of global change on plant-microbe interactions. As a primary substrate of plant metabolism, atmospheric CO2 influences below-ground carbon allocation and root exudation chemistry, potentially affecting rhizosphere interactions with beneficial soil microbes. In this study, we have examined the effects of different atmospheric CO2 concentrations on Arabidopsis rhizosphere colonization by the rhizobacterial strain Pseudomonas simiae WCS417 and the saprophytic strain Pseudomonas putida KT2440. Rhizosphere colonization by saprophytic KT2440 was not influenced by sub-ambient (200 ppm) and elevated (1,200 ppm) concentrations of CO2, irrespective of the carbon (C) and nitrogen (N) content of the soil. Conversely, rhizosphere colonization by WCS417 in soil with relatively low C and N content increased from sub-ambient to elevated CO2. Examination of plant responses to WCS417 revealed that plant growth and systemic resistance varied according to atmospheric CO2 concentration and soil-type, ranging from growth promotion with induced susceptibility at sub-ambient CO2, to growth repression with induced resistance at elevated CO2. Collectively, our results demonstrate that the interaction between atmospheric CO2 and soil nutritional status has a profound impact on plant responses to rhizobacteria. We conclude that predictions about plant performance under past and future climate scenarios depend on interactive plant responses to soil nutritional status and rhizobacteria.
dc.language.isoen
dc.publisherFrontiers
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectPGPR
dc.subject.enCO2
dc.subject.enISR
dc.subject.englobal change
dc.subject.enrhizosphere
dc.title.enImpacts of Atmospheric CO2 and Soil Nutritional Value on Plant Responses to Rhizosphere Colonization by Soil Bacteria
dc.typeArticle de revue
dc.identifier.doi10.3389/fpls.2018.01493
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.description.sponsorshipEuropePriming of plant immunity: from its onset to trans-generational maintenance.
bordeaux.journalFrontiers in Plant Science
bordeaux.page1493
bordeaux.volume9
bordeaux.peerReviewedoui
hal.identifierhal-02626609
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02626609v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Frontiers%20in%20Plant%20Science&rft.date=2018&rft.volume=9&rft.spage=1493&rft.epage=1493&rft.eissn=1664-462X&rft.issn=1664-462X&rft.au=WILLIAMS,%20Alex&P%C3%89TRIACQ,%20Pierre&BEERLING,%20David%20J&COTTON,%20T%20E%20Anne&TON,%20Jurriaan&rft.genre=article


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