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The Interaction between Tribolium castaneum and Mycotoxigenic Aspergillus flavus in Maize Flour

2021-08-14Journal article Open access
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dc.contributor.authorDuarte, Sónia
dc.contributor.authorMagro, Ana
dc.contributor.authorTomás, Joanna
dc.contributor.authorHilário, Carolina
dc.contributor.authorAlvito, Paula
dc.contributor.authorFerreira, Ricardo
dc.contributor.authorCarvalho, M.Otilia
dc.date.accessioned2022-01-20T15:52:25Z
dc.date.available2022-01-20T15:52:25Z
dc.date.issued2021-08-14
dc.descriptionThis article belongs to the Special Issue Selected Papers from the 1st International Electronic Conference on Entomology.pt_PT
dc.description.abstractSimple Summary: It is important to hold cereals in storage conditions that exclude insect pests such as the red flour beetle and fungi, especially mycotoxin-producing ones (as a few strains of Aspergillus flavus). This work aims to investigate the interaction between these two organisms when thriving in maize flour. It was observed that when both organisms were together, the mycotoxins detected in maize flour were far higher than when the fungi were on their own, suggesting that the presence of insects may contribute positively to fungi development and mycotoxin production. The insects in contact with the fungi were almost all dead at the end of the trials, suggesting a negative effect of the fungi growth on the insects. Both organisms interacted when in contact. This is the first study on this issue, although further investigation would benefit from clarification on the mechanisms leading to the nature of the detected interactions.pt_PT
dc.description.abstractAbstract: Tribolium castaneum is one of the most common insect pests of stored products. Its presence makes cereals more susceptible to the spread of the fungi Aspergillus flavus, which may produce mycotoxins. The aim of this work was to evaluate the influence of T. castaneum adults on the development of a mycotoxigenic A. flavus strain in maize flour as well as the influence of this fungus on the insects. Maize flour was exposed to T. castaneum, spores of A. flavus or to both. The results revealed an interaction between T. castaneum and A. flavus as the flour exposed to both organisms was totally colonized by the fungus whereas almost all the insects were killed. Aflatoxin B1 (AFB1) revealed a significantly higher concentration in the flour inoculated with both organisms (18.8 µg/kg), being lower when exposed only to A. flavus, suggesting that the presence of insects may trigger fungal development and enhance mycotoxin production. The ability of these organisms to thrive under the same conditions and the chemical compounds they release makes the interaction between them a subject of great importance to maintain the safety of stored maize. This is the first work evaluating the interaction between T. castaneum and A. flavus mycotoxin production.pt_PT
dc.description.sponsorshipFCT/MCTES - financial support to CESAM (UIDP/50017/2020 + UIDB/50017/2020) through national funds. This research was funded by Fundação para a Ciência e a Tecnologia, grant number PTDC/ASP-PLA/28350/2017pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationInsects. 2021 Aug 14;12(8):730. doi: 10.3390/insects12080730pt_PT
dc.identifier.doi10.3390/insects12080730pt_PT
dc.identifier.issn2075-4450
dc.identifier.urihttp://hdl.handle.net/10400.18/7865
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationContamination of stored grain and derivatives by insect pests and fungi
dc.relationCentre for Environmental and Marine Studies
dc.relationCentre for Environmental and Marine Studies
dc.relation.publisherversionhttps://www.mdpi.com/journal/insectspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAspergillus flavuspt_PT
dc.subjectAflatoxin B1pt_PT
dc.subjectMaize Flourpt_PT
dc.subjectTribolium castaneumpt_PT
dc.subjectFood Safetypt_PT
dc.subjectSegurança Alimentarpt_PT
dc.subjectComposição dos Alimentospt_PT
dc.titleThe Interaction between Tribolium castaneum and Mycotoxigenic Aspergillus flavus in Maize Flourpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleContamination of stored grain and derivatives by insect pests and fungi
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FASP-PLA%2F28350%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50017%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50017%2F2020/PT
oaire.citation.issue8pt_PT
oaire.citation.startPage730pt_PT
oaire.citation.titleInsectspt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctAcesso de acordo com política editorial da revista.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication5dcb4749-b657-494f-b2de-36ad7cd913fa
relation.isProjectOfPublication4e22de31-8fc5-4b15-b980-3fd0edf5515d
relation.isProjectOfPublication0e72e6c8-b610-43e0-931c-8ad275ad6093
relation.isProjectOfPublication.latestForDiscovery5dcb4749-b657-494f-b2de-36ad7cd913fa

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