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Plant growth-promoting bacteria as biological control agents for sustainable agriculture: targeting root-knot nematodes

2025-08-19Artigo científico Acesso aberto
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datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg15:Proteger a Vida Terrestre
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorMata, Adriana S.
dc.contributor.authorCruz, Carlos
dc.contributor.authorGaspar, João Rodrigues
dc.contributor.authorAbrantes, Isabel
dc.contributor.authorConceição, Isabel Luci
dc.contributor.authorMorais, Paula V.
dc.contributor.authorProença, Diogo Neves
dc.date.accessioned2026-02-20T10:57:58Z
dc.date.available2026-02-20T10:57:58Z
dc.date.issued2025-08-19
dc.description.abstractThe increasing frequency of extreme weather events affects ecosystems and threatens food production. The reduction of chemical pesticides, together with other ecological approaches, is crucial to more sustainable agriculture. Plantparasitic nematodes (PPN), especially root-knot nematodes (RKN), Meloidogyne spp., are responsible for extensive damage to a wide range of economically important crops, leading to yield losses and reduced quality of the products. This study aims to show the potential of native potato-growing soil bacterial strains as biological control agents in a more sustainable agriculture perspective. After screening thirty bacterial strains, a bacterial consortium, composed of B. amyloliquefaciens UC_2.4, P. capeferrum UC_21.3 A.1, and P. capeferrum UC_21.30 A.1, was defined and investigated in more detail due to their potential for plant growth-promoting bacteria (PGPB), fungicidal, and nematicidal activities. The genomes of the strains were sequenced and analyzed for PGPB traits, and phenotypic assays were also performed. The nematicidal activity of these strains towards PPN and the model organism Caenorhabditis elegans was assessed. Their potential as PGPB and for controlling PPN on soil was evaluated in pot assays with tomato plants cv. Coração de Boi, by using bacterial strains alone and as a consortium. Here, the bacterial consortium showed some PGPB traits verified by genome mining and phenotypic assays in vitro and pot assays with plants. It was able to act as nematicidal agents with 100% efficacy towards PPN but not against C. elegans, indicating a highly targeted action mechanism, which might be attributed to the surfactin, fengycin, and lipopeptides, not affecting other nontarget organisms that play essential roles in soil health. The bacterial consortium reduced the infectivity of PPN in plants by threefold. This bacterial consortium was established for the first time and has the potential to serve as a new tool for managing RKN in a more sustainable agricultural environment.eng
dc.description.sponsorshipCEMMPRE (UID/EMS/00285/2020), ARISE (LA/P/0112/2020), CFE (UIDB/04004/2020), TERRA (LA/P/0092/2
dc.identifier.doi10.3389/fpls.2025.1567265
dc.identifier.issn1664-462X
dc.identifier.urihttp://hdl.handle.net/10400.1/28201
dc.language.isoeng
dc.peerreviewedyes
dc.publisherFrontiers Media SA
dc.relationCentre for Functional Ecology - Science for People & the Planet
dc.relation.ispartofFrontiers in Plant Science
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBacterial consortium
dc.subjectBiological control agents
dc.subjectPlant-parasitic nematodes
dc.subjectSustainable agriculture
dc.subjectBacillus amyloliquefaciens
dc.subjectPseudomonas capeferrum
dc.titlePlant growth-promoting bacteria as biological control agents for sustainable agriculture: targeting root-knot nematodeseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDB/04004/2020
oaire.awardTitleCentre for Functional Ecology - Science for People & the Planet
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04004%2F2020/PT
oaire.citation.titleFrontiers in Plant Science
oaire.citation.volume16
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameProença
person.givenNameDiogo Neves
person.identifier.orcid0000-0002-1284-9082
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication9dd65049-69ed-48dc-a978-0be4af17b084
relation.isAuthorOfPublication.latestForDiscovery9dd65049-69ed-48dc-a978-0be4af17b084
relation.isProjectOfPublicationb12e8908-edaa-4192-ae16-10fdbbaa2ad3
relation.isProjectOfPublication.latestForDiscoveryb12e8908-edaa-4192-ae16-10fdbbaa2ad3

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