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Lavender decline in France is associated with chronic infection by lavender-specific strain of “Candidatus Phytoplasma solani”

hal.structure.identifierComité Interprofessionnel Huiles Essentielles Françaises
dc.contributor.authorSÉMÉTEY, Olivier
hal.structure.identifierComité Interprofessionnel Huiles Essentielles Françaises
dc.contributor.authorGAUDIN, Jonathan
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDANET, Jean-Luc
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorSALAR, Pascal
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorTHEIL, Sébastien
hal.structure.identifierCentre Régionalisé Interprofessionnel d'Expérimentation en Plantes à Parfum, Aromatiques et Médicinales [CRIEPPAM]
dc.contributor.authorFONTAINE, Marie
hal.structure.identifierComité Interprofessionnel Huiles Essentielles Françaises
dc.contributor.authorKRAUSZ, Michel
hal.structure.identifierCentre Régionalisé Interprofessionnel d'Expérimentation en Plantes à Parfum, Aromatiques et Médicinales [CRIEPPAM]
dc.contributor.authorCHAISSE, Eric
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorEVEILLARD, Sandrine
hal.structure.identifierUnité de Pathologie Végétale [PV]
dc.contributor.authorVERDIN, Eric
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorFOISSAC, Xavier
dc.date.issued2018
dc.identifier.issn0099-2240
dc.description.abstractEnLavender decline compromises the French lavender production, and preliminary data have suggested the involvement of “<em>Candidatus</em> Phytoplasma solani” in the etiology of the disease. In order to evaluate “Ca. P. solani” epidemiological role, a three year survey was conducted in Southeastern France. “<em>Ca.</em> P. solani” was detected in 19 to 56 % of the declining plants, depending on seasons and cultivars, and its prevalence was correlated with symptom severity. Autumn was more favorable than spring for phytoplasma detection, and “<em>Ca. P. solani”</em> incidence was higher in <em>Lavandula angustifolia</em> than in <em>L. intermedia</em> hybrids. Detection of the phytoplasma fluctuated over months supporting the chronicity of infection. Three ‘<em>Ca.</em> P. solani" secY genotypes S17, S16 and S14 were the most prevalent in lavender fields and were also detected in nurseries, whereas strains detected in surrounding bindweed and wild carrots were mostly of the S1 and S4 genotypes. This suggests lavender is the main pathogen reservoir of the epidemic. Adults and nymphs of the planthopper vector <em>Hyalesthes obsoletus</em> were commonly captured in lavender fields and were shown to mainly harbor the prevalent phytoplasma genotypes detected in lavenders. The “<em>Ca.</em> P. solani” genotype S17 was transmitted to <em>Catharanthus roseus</em> periwinkle by naturally infected <em>H. obsoletus</em>. Finally, the inventory of the bacterial community of declining lavenders that tested negative for "<em>Ca.</em> P. solani" by 16S rRNA deep-sequencing ruled out the involvement of other phloem-limited bacterial pathogens.
dc.language.isoen
dc.publisherAmerican Society for Microbiology
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subjectmolecular epidemiology
dc.subjectplanthopper
dc.subject.enhyalesthes obsoletus
dc.subject.enhymenobacter
dc.subject.enphytoplasma
dc.subject.enstolbur
dc.subject.engenotyping
dc.subject.enphloem-limited bacteria
dc.title.enLavender decline in France is associated with chronic infection by lavender-specific strain of “Candidatus Phytoplasma solani”
dc.typeArticle de revue
dc.identifier.doi10.1128/AEM.01507-18
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
bordeaux.journalApplied and Environmental Microbiology
bordeaux.pagee01507-18
bordeaux.volume84
bordeaux.issue24
bordeaux.peerReviewedoui
hal.identifierhal-02626071
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02626071v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Applied%20and%20Environmental%20Microbiology&amp;rft.date=2018&amp;rft.volume=84&amp;rft.issue=24&amp;rft.spage=e01507-18&amp;rft.epage=e01507-18&amp;rft.eissn=0099-2240&amp;rft.issn=0099-2240&amp;rft.au=S%C3%89M%C3%89TEY,%20Olivier&amp;GAUDIN,%20Jonathan&amp;DANET,%20Jean-Luc&amp;SALAR,%20Pascal&amp;THEIL,%20S%C3%A9bastien&amp;rft.genre=article


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