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Biological control of Botrytis bunch rot in Atlantic climate vineyards with Candida sake CPA-1 and its survival under limiting conditions of temperature and humidity

hal.structure.identifierFood Technology Department
dc.contributor.authorCALVO-GARRIDO, C.
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorROUDET, Jean
hal.structure.identifierUniversitat de Lleida
dc.contributor.authorVIÑAS, I.
hal.structure.identifierInstitut de Recerca i Tecnologia Agroalimentàries = Institute of Agrifood Research and Technology [IRTA]
dc.contributor.authorUSALL, J.
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorFERMAUD, Marc
dc.date.accessioned2024-04-08T12:33:12Z
dc.date.available2024-04-08T12:33:12Z
dc.date.issued2014
dc.identifier.issn1049-9644
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/197181
dc.description.abstractEnCandida sake CPA-1 is an antagonistic yeast that has previously been shown to effectively control Botrytis bunch rot in grapes. The efficacy of biological control agents is dependent on their survival, which may also depend on climatic conditions. However, few studies have evaluated the effect of abiotic factors affecting the survival of biological control agents, such as temperature (T) or relative humidity (RH). In this study, efficacy of C. sake (5 × 107 CFU mL−1), which was applied with the additive Fungicover (FC; 50 g L−1), was tested against BBR in the laboratory and in field trials under the Atlantic climate conditions of the Bordeaux region (France). The study also evaluated the survival of C. sake under T and RH regimes simulated in climatic chambers. Two or five applications of C. sake plus FC during the growing season significantly reduced BBR severity at harvest by 48% and 82%, respectively, when compared to the control. Similar reductions were achieved after inoculation with selected virulent Botrytis cinerea strains (75% compared to control) in laboratory experiments. C. sake populations showed minimal decreases between field applications and were favored by simulated Atlantic climate conditions. The survival pattern of C. sake exposed to 40 and 45 °C combined with 30% and 100% of RH was described, demonstrating a sharp decrease during the first 24 h. Allowing 48 h for C. sake to incubate and become established on fruits prior to the exposure to 40 °C and 30% RH increased survival (P < 0.05). These results confirm the efficacy of treatment with C. sake plus FC under favorable climatic conditions for BBR development, while survival studies may help to improve the survival and efficacy of yeast BCAs, such as C. sake CPA-1.
dc.language.isoen
dc.publisherElsevier
dc.subjectextreme conditions
dc.subject.enabiotic factors
dc.subject.enfatty acids
dc.subject.enfungal disease
dc.subject.engrapevine
dc.subject.enVitis vinifera
dc.title.enBiological control of Botrytis bunch rot in Atlantic climate vineyards with Candida sake CPA-1 and its survival under limiting conditions of temperature and humidity
dc.typeArticle de revue
dc.identifier.doi10.1016/j.biocontrol.2014.05.011
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalBiological Control
bordeaux.page24-35
bordeaux.volume79
bordeaux.hal.laboratoriesSanté et Agro-Ecologie du Vignoble (SAVE) - UMR 1065*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02631690
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02631690v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Biological%20Control&amp;rft.date=2014&amp;rft.volume=79&amp;rft.spage=24-35&amp;rft.epage=24-35&amp;rft.eissn=1049-9644&amp;rft.issn=1049-9644&amp;rft.au=CALVO-GARRIDO,%20C.&amp;ROUDET,%20Jean&amp;VI%C3%91AS,%20I.&amp;USALL,%20J.&amp;FERMAUD,%20Marc&amp;rft.genre=article


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