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Cutaneous excreta of the earthworm Eisenia fetida (Haplotaxida: Lumbricidae) might hinder the biological control performance of entomopathogenic nematodes

2020-02Journal article Restricted access
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dc.contributor.authorChelkha, Maryam
dc.contributor.authorBlanco-Perez, Ruben
dc.contributor.authorBueno-Pallero, Francisco Angel
dc.contributor.authorAmghar, Souad
dc.contributor.authorEl Harti, Abdellatif
dc.contributor.authorCampos-Herrera, Raquel
dc.date.accessioned2021-06-24T11:35:57Z
dc.date.available2021-06-24T11:35:57Z
dc.date.issued2020-02
dc.description.abstractEarthworms enhance soil structure, the decomposition of organic matter and the dissemination of beneficial soil organisms such as the entomopathogenic nematodes (EPNs). Nevertheless, the effects of earthworm feeding behavior or cutaneous excreta (CEx) on the performance of EPNs as biological control agents is poorly understood. We hypothesized that the presence of earthworms or their excreta reduces EPN fitness, measured in terms of pathogenicity and reproductive success. In laboratory experiments we first evaluated the killing ability of EPNs against Galleria mellonella (Lepidoptera: Pyralidae) larvae when inoculated in autoclaved soil alone or in combination with the earthworm Eisenia fetida (Haplotaxida: Lumbricidae) or their excreta. We also evaluated EPN efficacy and reproduction when exposed to CEx derived from E. fetida at two nematode concentrations (1.5 and 10 IJs/cm(2)). For both experiments, we tested four steinernematids (Steinernema carpocapsae, S. feltiae, S. glaseri, and S. khuongi) and two heterorhabditids (Heterorhabditis bacteriophora and H. zealandica). The presence of earthworms or their excreta resulted in significant reduction of the larval mortality caused by some of the steinernematids at certain timings depending of the species (P < 0.015), while heterorhabditids were mainly not affected. Both S. feltiae and H. zealandica progeny production was significantly reduced (P < 0.01) when exposed to CEx. Hence, we showed that the presence of CEx might alter the biocontrol performance of certain EPN species, especially steinernematids bigger than 600 mu m in size (S. feltiae, S. glaseri, and S. khoungi), by affecting their pathogenicity and reproductive success.
dc.description.sponsorshipUniversidade do Algarve, Portugal [UAlg-2016/004, UAlg-2016/003]
dc.description.sponsorshipMoroccan scholarship
dc.description.sponsorshipDepartment of Economic Development and Innovation, Government of La Rioja (Spain)
dc.description.sponsorshipRamon y Cajal contract award from the Government of Spain [RYC-2016-19939]
dc.description.sponsorshipCSIC i-coop+ 2018 grant [COOPA20231]
dc.description.sponsorship[IF/00552/2014]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.soilbio.2019.107691
dc.identifier.issn0038-0717
dc.identifier.urihttp://hdl.handle.net/10400.1/16587
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationMediterranean ecosystem as a model in the development of molecular and ecological approaches for the study of multitrophic interactions in the soil: ecosystem services and biocontrol enhancement
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCutaneous mucus
dc.subjectEisenia fetida
dc.subjectHeterorhabditis spp.
dc.subjectSteinernema spp.
dc.subject.otherAgriculture
dc.titleCutaneous excreta of the earthworm Eisenia fetida (Haplotaxida: Lumbricidae) might hinder the biological control performance of entomopathogenic nematodes
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMediterranean ecosystem as a model in the development of molecular and ecological approaches for the study of multitrophic interactions in the soil: ecosystem services and biocontrol enhancement
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F00552%2F2014%2FCP1234%2FCT0007/PT
oaire.citation.startPage107691
oaire.citation.titleSoil Biology & Biochemistry
oaire.citation.volume141
oaire.fundingStreamInvestigador FCT
person.familyNameCampos-Herrera
person.givenNameRaquel
person.identifier75402
person.identifier.orcid0000-0003-0852-5269
person.identifier.ridA-5299-2017
person.identifier.scopus-author-id16318511600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication28736fd2-ac4e-43ac-84e0-51a1a10ffc28
relation.isAuthorOfPublication.latestForDiscovery28736fd2-ac4e-43ac-84e0-51a1a10ffc28
relation.isProjectOfPublication083241da-257d-47c5-8bf1-27fecdf635e8
relation.isProjectOfPublication.latestForDiscovery083241da-257d-47c5-8bf1-27fecdf635e8

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