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Evaluation of the effectiveness of tomato-associated rhizobacteria applied singly or as three-strain consortium for biosuppression of Sclerotinia stem rot in tomato

hal.structure.identifierUniversité de Sousse
dc.contributor.authorOUHAIBI-BEN ABDELJALIL, Nada
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorRENAULT, David
hal.structure.identifierBIOVITIS (FRANCE)
dc.contributor.authorGERBORE, Jonathan
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorVALLANCE, Jessica
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorREY, Patrice
hal.structure.identifierUniversité de Sousse
dc.contributor.authorDAAMI-REMADI, Mejda
dc.date.accessioned2024-04-08T12:32:58Z
dc.date.available2024-04-08T12:32:58Z
dc.date.issued2016
dc.identifier.issn1948-5948
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/197166
dc.description.abstractEnIn the present study, the capacity of three native tomato-associated rhizobacteria (Bacillus subtilis B2, B. thuringiensis B10, and Enterobacter cloacae B16) to suppress Sclerotinia Stem Rot in tomato and to improve growth was investigated in two tomato cultivars. The three bacterial strains were tested against S. sclerotiorum either singly or as consortium and their efficacy was compared to a fungicide control. All bacteria-based treatments were found to be more effective in suppressing disease than chemical fungicide on both cultivars and in both year trials. The disease-suppression and growth-promoting abilities of the treatments tested varied significantly depending on bacterial strains used, tomato cultivars grown, and year trial. Overall, all three strains suppressed the disease more effectively than the chemical fungicide. Indeed, for both year trials and cultivars combined, disease suppression potential, as compared to pathogen-inoculated and untreated control, ranged between 80.79 and 88.01% using the three-strain consortium relative to 70.00-82.07% achieved with single strains and 32.13-58.97% using fungicide. Plants grown in S. sclerotiorum-infected peat and challenged with the three-strain consortium were 38.36 to 80.95% taller than control ones whereas height increment noted using single strains and fungicide was of about 32.35- 79.01 and 29.62-51.85%, respectively. Aerial parts and root fresh weights of pathogen-inoculated and treated plants were enhanced by 51.59-74.69% and 54.00-78.12% using mixed strains and by 39.12-76.83% and 42.02-77.01%, respectively, using single strains compared to 24.04-53.05 and 12.74-67.05% noted on chemically treated plants. The effect of the three biocontrol agents was also examined on the composition of microbial communities inhabiting the rhizosphere of tomato plants. Results of the single strand conformational polymorphism (SSCP)-based profiling revealed that rhizosphere communities differed between cultivars only. However, the introduction of S. sclerotiorum or biocontrol agents did not cause detectable perturbations in the composition of fungal and bacterial communities inhabiting roots of treated tomato plants.
dc.language.isoen
dc.publisherOMICS Publishing Group
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enEvaluation of the effectiveness of tomato-associated rhizobacteria applied singly or as three-strain consortium for biosuppression of Sclerotinia stem rot in tomato
dc.typeArticle de revue
dc.identifier.doi10.4172/1948-5948.1000302
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalJournal of Microbial & Biochemical Technology
bordeaux.page312-320
bordeaux.volume8
bordeaux.hal.laboratoriesSanté et Agro-Ecologie du Vignoble (SAVE) - UMR 1065*
bordeaux.issue4
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02633619
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02633619v1
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