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Can copper oxide or potassium phosphonate increase Pinus pinaster tolerance to Bursaphelenchus xylophilus?

2025-01-01Artigo de investigação Acesso aberto
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dc.contributor.authorLopez-Villamor, Adrian
dc.contributor.authorSilva, Marta Nunes da
dc.contributor.authorVasconcelos, Marta W.
dc.date.accessioned2026-02-26T16:12:51Z
dc.date.available2026-02-26T16:12:51Z
dc.date.issued2025-01-01
dc.description.abstractFungicide application may improve Pinus pinaster (Maritime pine)defenses against Bursaphelenchus xylophilus (pinewood nematode,PWN). To test this hypothesis, we evaluated the effects of copperoxide (CO) and potassium phosphonate (PP) on PWN-infected P. pina-ster plants. The overall mortality rate of infected plants was 12.5%,regardless of the treatment. PP-treated plants displayed a significantreduction in nematode densities (up to 61%) and foliar symptomscompared to untreated controls. Twenty-eight-day post-infection, COand PP increased oxidative stress proxies, such as lipid peroxidation(1.84- and 1.77-fold increases, respectively), and PP also enhancedantioxidant defenses, particularly flavonoid concentrations, whichwere 1.37-fold higher than those in CO-treated plants. In addition,both CO and PP reduced zinc and phosphorus concentrations inplant tissues, compared to controls, and CO treatment led to anincrease in plant endophytic bacterial diversity, while PP reduced it.These findings demonstrate that CO and PP enhance P. pinaster toler-ance to PWN by promoting the plant oxidant system, modulatingmineral uptake, and altering plant–endophyte interactions. Thisstudy also highlights the potential to enhance resource use efficiencyby extending fungicide applications beyond fungal pathogens toinclude nematodes, such as the PWN, offering a valuable approachfor the integrated management of multiple pests.eng
dc.identifier.citationLopez-Villamor, A., Silva, M. N. D., & Vasconcelos, M. W. (2025). Can copper oxide or potassium phosphonate increase Pinus pinaster tolerance to Bursaphelenchus xylophilus? Journal of Sustainable Forestry, 44(10), 983-1002. https://doi.org/10.1080/10549811.2025.2553386
dc.identifier.doi10.1080/10549811.2025.2553386
dc.identifier.eid105015438493
dc.identifier.issn1054-9811
dc.identifier.other36413095-23e9-4556-8d63-7810c0115d1a
dc.identifier.pmid39985147
dc.identifier.urihttp://hdl.handle.net/10400.14/57198
dc.identifier.wos001566060800001
dc.language.isoeng
dc.peerreviewedyes
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAntioxidant activity
dc.subjectEndophytic bacteria
dc.subjectMinerals
dc.subjectPine wilt disease
dc.subjectPinewood nematode
dc.subjectPinus pinaster
dc.titleCan copper oxide or potassium phosphonate increase Pinus pinaster tolerance to Bursaphelenchus xylophilus?eng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.endPage1002
oaire.citation.issue10
oaire.citation.startPage983
oaire.citation.titleJournal of Sustainable Forestry
oaire.citation.volume44
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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