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Isolation, identification and in vitro characterization of grapevine rhizobacteria to control ochratoxigenic Aspergillus spp. on grapes

hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
hal.structure.identifierUniversité de Tunis El Manar [UTM]
dc.contributor.authorARFAOUI, Mayssa
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorVALLANCE, Jessica
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorBRUEZ, Emilie
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorREZGUI, Awatef
hal.structure.identifierLaboratoire de Physiologie Moléculaire des Plantes
dc.contributor.authorMELKI, Imen
hal.structure.identifierLaboratoire de Physiologie Moléculaire des Plantes
dc.contributor.authorCHEBIL, Samir
hal.structure.identifierUniversité de Tunis El Manar [UTM]
dc.contributor.authorSADFI-ZOUAOUI, Najla
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorREY, Patrice
dc.date.accessioned2024-04-08T12:34:01Z
dc.date.available2024-04-08T12:34:01Z
dc.date.issued2019
dc.identifier.issn1049-9644
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/197237
dc.description.abstractEnAspergillus spp. are fungal pathogens that attack the grape and that are known for their secretion of mycotoxins, in particular, ochratoxin which is very toxic. A total of 39 bacterial strains isolated from the rhizosphere in Tunisian vineyards were identified using 16S rDNA and rpob gene sequencing: 35 were Bacillus spp. strains, 2 were Brevibacterium spp., 1 was Paenibacillus sp. and 1 strain was Microbacterium oxydans. Biochemical and microbiological screenings revealed that those 39 strains (i) metabolized differently carbon sources, (ii) possessed antibiotic genes and (iii) produced siderophores. Based on their PGP traits, 21 strains were selected and tested in vitro for their antagonistic effect against two fungal pathogens, Aspergillus ochraceus and A. carbonarius. All the tested antagonists were able to reduce the growth of A. ochraceus, with Bacillus amyloliquefaciens being the most efficient; and A. carbonarius, in particular Bacillus pumilus. In vitro screening using detached berries showed the potential of B. pumilus strain G3AX for inhibiting contaminations by Aspergillus spp., that are OTA-producing fungi. At the berry surface, the efficacy of the bacterial strains strongly depended on the presence or absence of wounds.
dc.language.isoen
dc.publisherElsevier
dc.subjectaspergillus ochraceus
dc.subjectbacillus spp.
dc.subjectbacillus pumilus
dc.subject.enantifungal activity
dc.subject.enaspergillus carbonarius
dc.subject.enbiocontrol
dc.title.enIsolation, identification and in vitro characterization of grapevine rhizobacteria to control ochratoxigenic Aspergillus spp. on grapes
dc.typeArticle de revue
dc.identifier.doi10.1016/j.biocontrol.2018.10.019
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalBiological Control
bordeaux.page201-211
bordeaux.volume129
bordeaux.hal.laboratoriesSanté et Agro-Ecologie du Vignoble (SAVE) - UMR 1065*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02628319
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02628319v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Biological%20Control&rft.date=2019&rft.volume=129&rft.spage=201-211&rft.epage=201-211&rft.eissn=1049-9644&rft.issn=1049-9644&rft.au=ARFAOUI,%20Mayssa&VALLANCE,%20Jessica&BRUEZ,%20Emilie&REZGUI,%20Awatef&MELKI,%20Imen&rft.genre=article


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