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Susceptibility to the pinewood nematode (PWN) of four pine species involved in potential range expansion across Europe

2018Journal article Restricted access
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dc.contributor.authorSilva, Marta Nunes da
dc.contributor.authorSolla, Alejandro
dc.contributor.authorSampedro, Luis
dc.contributor.authorZas, Rafael
dc.contributor.authorVasconcelos, Marta W.
dc.date.accessioned2018-10-15T18:01:13Z
dc.date.available2018-10-15T18:01:13Z
dc.date.issued2018
dc.description.abstractThe pine wilt disease (PWD), caused by the pinewood nematode (PWN) Bursaphelenchus xylophilus (Steiner et Buhrer) Nickle, is one of the most serious threats to pine forests worldwide. Here we studied several components of susceptibility to PWN infection in a model group of pine species widely distributed in Europe (Pinus pinaster Ait., P. pinea L., P. sylvestris L. and P. radiata D. Don), specifically concerning anatomical and chemical traits putatively related to nematode resistance, whole-plant nematode population after experimental inoculation, and several biochemical and physiological traits indicative of plant performance, damage and defensive responses 60 days post inoculation (dpi) in 3-year-old plants. Pinus pinaster was the most susceptible species to PWN colonization, with a 13-fold increase in nematode population size following inoculation, showing up to 35-fold more nematodes than the other species. Pinus pinea was the most resistant species, with an extremely reduced nematode population 60 dpi. Axial resin canals were significantly wider in P. pinaster than in the other species, which may have facilitated nematode dispersal through the stem and contributed to its high susceptibility; nevertheless, this trait does not seem to fully determinate the susceptible character of a species, as P. sylvestris showed similar nematode migration rates to P. pinaster but narrower axial resin canals. Nematode inoculation significantly affected stem water content and polyphenolic concentration, and leaf chlorophyll and lipid peroxidation in all species. In general, P. pinaster and P. sylvestris showed similar chemical responses after infection, whereas P. radiata, which co-exists with the PWN in its native range, showed some degree of tolerance to the nematode. This work provides evidence that the complex interactions between B. xylophilus and its hosts are species-specific, with P. pinaster showing a strong susceptibility to the pathogen, P. pinea being the most tolerant species, and P. sylvestris and P. radiata having a moderate susceptibility, apparently through distinct coping mechanisms.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSilva, M. N., Solla, A., Sampedro, L., Zas, R., Vasconcelos, M. W. (2018). Susceptibility to the pinewood nematode (PWN) of four pine species involved in potential range expansion across Europe. Tree Physiology, 35(9), 987-999pt_PT
dc.identifier.doi10.1093/treephys/tpv046pt_PT
dc.identifier.eid84943516810
dc.identifier.eissn1758-4469
dc.identifier.issn0829-318X
dc.identifier.pmid26220737
dc.identifier.urihttp://hdl.handle.net/10400.14/25779
dc.identifier.wos000362359300007
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherOxford University Presspt_PT
dc.relationAGL2012-40151
dc.relationPRI-AIBPT-2011-1152
dc.relationStrategic Project - LA 16 - 2011-2012
dc.subjectBursaphelenchus xylophiluspt_PT
dc.subjectNon-native invasive pathogenpt_PT
dc.subjectOxidative stresspt_PT
dc.subjectPine wilt diseasept_PT
dc.subjectPlant resistancept_PT
dc.subjectQuarantine speciespt_PT
dc.subjectResin canalspt_PT
dc.titleSusceptibility to the pinewood nematode (PWN) of four pine species involved in potential range expansion across Europept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - LA 16 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/COMPETE/PTDC%2FAGR-CFL%2F120184%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEQB%2FLA0016%2F2011/PT
oaire.citation.issue9pt_PT
oaire.citation.titleTree Physiologypt_PT
oaire.citation.volume35pt_PT
oaire.fundingStreamCOMPETE
oaire.fundingStream6817 - DCRRNI ID
person.familyNameNunes da Silva
person.familyNameSolla
person.familyNameSampedro
person.familyNameVasconcelos
person.givenNameMarta
person.givenNameAlejandro
person.givenNameLuis
person.givenNameMarta
person.identifier348949
person.identifier74696
person.identifier.ciencia-id3C1B-7E7B-F695
person.identifier.orcid0000-0001-8228-0576
person.identifier.orcid0000-0002-2596-1612
person.identifier.orcid0000-0002-3921-2575
person.identifier.orcid0000-0002-5110-7006
person.identifier.ridL-3096-2014
person.identifier.ridB-7187-2011
person.identifier.ridI-8166-2013
person.identifier.scopus-author-id55576995600
person.identifier.scopus-author-id6508132226
person.identifier.scopus-author-id6602606802
person.identifier.scopus-author-id14627797100
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
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb7e51c98-600e-42ac-9dd6-0d70e8fc5f19
relation.isAuthorOfPublication59f4dc07-5904-4f4f-8cee-e11ea4c1be4f
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