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Two phytoplasmas elicit different responses in the insect vector <em>Euscelidius variegatus Kirschbaum</em>

hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorGALETTO, Luciana
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorABBÀ, Simona
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorROSSI, Marika
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorVALLINO, Marta
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorPESANDO, Massimo
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorARRICAU-BOUVERY, Nathalie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDUBRANA, Marie-Pierre
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorCHITARRA, Walter
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorPEGORARO, Mattia
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorBOSCO, Domenico
hal.structure.identifierCNR Istituto per la Protezione Sostenibile delle Piante [Torino, Italia] [IPSP]
dc.contributor.authorMARZACHÌ, Cristina
dc.date.issued2018
dc.identifier.issn0019-9567
dc.description.abstractEnPhytoplasmas are plant pathogenic bacteria transmitted by hemipteran insects. The leafhopper Euscelidius variegatus is a natural vector of chrysanthemum yellows phytoplasma (CYp) and a laboratory vector of Flavescence dorée phytoplasma (FDp). The two phytoplasmas induce different effects on this species: CYp slightly improves, while FDp negatively affects insect fitness. To investigate the molecular bases of these different responses, RNA-seq analysis of E. variegatus infected with either CYp or FDp was performed. The sequencing provided the first de novo transcriptome assembly for a phytoplasma vector, and a starting point for further analyses on differentially regulated genes, mainly related to immune system and energy metabolism. Insect phenoloxidase activity, immunocompetence, and body pigmentation were measured to investigate the immune response, while respiration and movement rates were quantified to confirm the effects on energy metabolism. The activation of insect immune response upon FDp infection, which is not naturally transmitted by E. variegatus, confirmed that this bacterium is mostly perceived as a potential pathogen. Conversely, the acquisition of CYp, which is naturally transmitted by E. variegatus, seems to increase the insect fitness by inducing a prompt response to stress. This long-term relationship is likely to improve survival and dispersal of the infected insect, thus enhancing the opportunity of phytoplasma transmission.
dc.language.isoen
dc.publisherAmerican Society for Microbiology
dc.subjectflavescence dorée phytoplasma
dc.subjectimmune response
dc.subject.enCandidatus Phytoplasma asteris
dc.subject.enenergy metabolism
dc.subject.enleafhopper
dc.title.enTwo phytoplasmas elicit different responses in the insect vector <em>Euscelidius variegatus Kirschbaum</em>
dc.typeArticle de revue
dc.identifier.doi10.1128/IAI.00042-18
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
bordeaux.journalInfection and Immunity
bordeaux.pagee00042-18
bordeaux.volume86
bordeaux.issue5
bordeaux.peerReviewedoui
hal.identifierhal-02621802
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02621802v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Infection%20and%20Immunity&amp;rft.date=2018&amp;rft.volume=86&amp;rft.issue=5&amp;rft.spage=e00042-18&amp;rft.epage=e00042-18&amp;rft.eissn=0019-9567&amp;rft.issn=0019-9567&amp;rft.au=GALETTO,%20Luciana&amp;ABB%C3%80,%20Simona&amp;ROSSI,%20Marika&amp;VALLINO,%20Marta&amp;PESANDO,%20Massimo&amp;rft.genre=article


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