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Biocontrol ability and production of volatile organic compounds as a potential mechanism of action of olive endophytes against Colletotrichum acutatum

2022Journal article Open access
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dc.contributor.authorSdiri, Yosra
dc.contributor.authorLopes, Teresa
dc.contributor.authorRodrigues, Nuno
dc.contributor.authorSilva, Kevin
dc.contributor.authorRodrigues, Isabel
dc.contributor.authorPereira, J.A.
dc.contributor.authorBaptista, Paula
dc.date.accessioned2022-03-17T09:59:12Z
dc.date.available2022-03-17T09:59:12Z
dc.date.issued2022
dc.description.abstractOlive anthracnose, mainly caused by Colletotrichum acutatum, is considered a key biotic constraint of the olive crop worldwide. This work aimed to evaluate the ability of the endophytes Aureobasidium pullulans and Sarocladium summerbellii isolated from olive trees to reduce C. acutatum growth and anthracnose symptoms, and to assess A. pullulans-mediated changes in olive fruit volatile organic compounds (VOCs) and their consequences on anthracnose development. Among the endophytes tested, only A. pullulans significantly reduced the incidence (up to 10-fold) and severity (up to 35-fold) of anthracnose in detached fruits, as well as the growth (up to 1.3-fold), sporulation (up to 5.9-fold) and germination (up to 3.5-fold) of C. acutatum in dual culture assays. Gas chromatography–mass spectrometry analysis of olives inoculated with A. pullulans + C. acutatum and controls (olives inoculated with C. acutatum, A. pullulans or Tween) led to the identification of 37 VOCs, with alcohols being the most diversified and abundant class. The volatile profile of A. pullulans + C. acutatum revealed qualitative and quantitative differences from the controls and varied over the time course of microbial interactions. The most significant differences among treatments were observed at a maximal reduction in anthracnose development. At this stage, a set of VOCs, particularly Z-3-hexen-1-ol, benzyl alcohol and nonanal, were highly positively correlated with the A. pullulans + C. acutatum treatment, suggesting they play a critical role in anthracnose reduction. 6-Methyl-5-hepten-2-one and 2-nonanone were positively associated with the C. acutatum treatment and thus likely have a role in pathogen infection.pt_PT
dc.description.sponsorshipThis research was funded by FEDER funds through COMPETE (Operational Programme for Competitiveness Factors) and by the Foundation for Science and Technology (FCT, Portugal) within the POCI-01-0145-FEDER-031133 (MicOlives, PTDC/ASP-PLA/31133/2017) project, as well as the Mountain Research Center—CIMO (UIDB/00690/2020).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSdiri, Yosra; Lopes, Teresa; Rodrigues, Nuno; Silva, Kevin; Rodrigues, Isabel; Pereira, J.; Baptista, Paula (2022). Biocontrol ability and production of volatile organic compounds as a potential mechanism of action of olive endophytes against Colletotrichum acutatum. Microorganisms. 2076-2607. 10:3, p. 1-17pt_PT
dc.identifier.doi10.3390/microorganisms10030571pt_PT
dc.identifier.eissn2076-2607
dc.identifier.urihttp://hdl.handle.net/10198/25243
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPI
dc.relationMountain Research Center
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiocontrolpt_PT
dc.subjectAureobasidium pullulanspt_PT
dc.subjectSarocladium summerbelliipt_PT
dc.subjectAnthracnosept_PT
dc.subjectVolatile compoundspt_PT
dc.titleBiocontrol ability and production of volatile organic compounds as a potential mechanism of action of olive endophytes against Colletotrichum acutatumpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Center
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.citation.issue3pt_PT
oaire.citation.startPage571pt_PT
oaire.citation.titleMicroorganismspt_PT
oaire.citation.volume10pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameLopes
person.familyNameRodrigues
person.familyNameSilva
person.familyNameRodrigues
person.familyNamePereira
person.familyNameBaptista
person.givenNameTeresa
person.givenNameNuno
person.givenNameKevin
person.givenNameIsabel
person.givenNameJosé Alberto
person.givenNamePaula
person.identifier.ciencia-idF310-3730-8A92
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person.identifier.ciencia-idB115-33B3-B059
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.ciencia-id7D11-FE1E-CD0F
person.identifier.orcid0000-0002-9305-0976
person.identifier.orcid0000-0002-3474-3561
person.identifier.orcid0000-0002-4827-2115
person.identifier.orcid0000-0002-2260-0600
person.identifier.orcid0000-0001-6331-3731
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id55258560600
person.identifier.scopus-author-id57204366348
person.identifier.scopus-author-id14051688000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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