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Skipping the Insect Vector: Plant Stolon Transmission of the Phytopathogen ‘Ca. Phlomobacter fragariae’ from the Arsenophonus Clade of Insect Endosymbionts

hal.structure.identifierUniversità degli Studi di Milano = University of Milan [UNIMI]
hal.structure.identifierFree University of Bozen-Bolzano
dc.contributor.authorDITTMER, Jessica
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorLUSSEAU, Thierry
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorFOISSAC, Xavier
hal.structure.identifierUniversità degli Studi di Milano = University of Milan [UNIMI]
dc.contributor.authorFAORO, Franco
dc.date.issued2021
dc.identifier.issn2075-4450
dc.description.abstractEnThe genus Arsenophonus represents one of the most widespread clades of insect endosymbionts, including reproductive manipulators and bacteriocyte-associated primary endosymbionts. Two strains belonging to the Arsenophonus clade have been identified as insect-vectored plant pathogens of strawberry and sugar beet. The bacteria accumulate in the phloem of infected plants, ultimately causing leaf yellows and necrosis. These symbionts therefore represent excellent model systems to investigate the evolutionary transition from a purely insect-associated endosymbiont towards an insect-vectored phytopathogen. Using quantitative PCR and transmission electron microscopy, we demonstrate that 'Candidatus Phlomobacter fragariae', bacterial symbiont of the planthopper Cixius wagneri and the causative agent of Strawberry Marginal Chlorosis disease, can be transmitted from an infected strawberry plant to multiple daughter plants through stolons. Stolons are horizontally growing stems enabling the nutrient provisioning of daughter plants during their early growth phase. Our results show that Phlomobacter was abundant in the phloem sieve elements of stolons and was efficiently transmitted to daughter plants, which rapidly developed disease symptoms. From an evolutionary perspective, Phlomobacter is, therefore, not only able to survive within the plant after transmission by the insect vector, but can even be transmitted to new plant generations, independently from its ancestral insect host.
dc.language.isoen
dc.publisherMDPI
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectBactérie phytopathogène
dc.subjectMollicute
dc.subjectInsecte vecteur
dc.subjectPlante fruitière
dc.subjectFruit
dc.subjectPathologie végétale
dc.subject.enStrawberry Marginal Chlorosis
dc.subject.enplant-microbe interactions
dc.subject.enpathogen transmission
dc.subject.enplanthopper
dc.title.enSkipping the Insect Vector: Plant Stolon Transmission of the Phytopathogen ‘Ca. Phlomobacter fragariae’ from the Arsenophonus Clade of Insect Endosymbionts
dc.typeArticle de revue
dc.identifier.doi10.3390/insects12020093
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
bordeaux.journalInsects
bordeaux.page93
bordeaux.volume12
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-03166562
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03166562v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Insects&rft.date=2021&rft.volume=12&rft.issue=2&rft.spage=93&rft.epage=93&rft.eissn=2075-4450&rft.issn=2075-4450&rft.au=DITTMER,%20Jessica&LUSSEAU,%20Thierry&FOISSAC,%20Xavier&FAORO,%20Franco&rft.genre=article


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