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Traumatic resin ducts induced by methyl jasmonate in Pinus spp

2021Journal article Restricted access
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dc.contributor.authorLópez‑Villamor, Adrián
dc.contributor.authorZas, Rafael
dc.contributor.authorPérez, Andrea
dc.contributor.authorCáceres, Yonatan
dc.contributor.authorSilva, Marta Nunes da
dc.contributor.authorVasconcelos, Marta
dc.contributor.authorVázquez‑González, Carla
dc.contributor.authorSampedro, Luis
dc.contributor.authorSolla, Alejandro
dc.date.accessioned2021-02-01T18:35:35Z
dc.date.available2021-02-01T18:35:35Z
dc.date.issued2021
dc.description.abstractKey message Exogenous MJ does not alter the resin duct structure of pines in the cortex, but increases the number, density and mean size of resin ducts in the secondary xylem, particularly in Pinus sylvestris and P. radiata. Abstract Methyl jasmonate (MJ) is an organic compound capable of modulating defence responses in plants. Exogenous application of MJ has been shown to modify the structure of the resin canal system in conifers by inducing the formation of dense concentric bands of traumatic resin ducts in the xylem. Because inducibility of resin ducts has been little explored across pine species, 3-year-old Pinus pinaster, P. pinea, P. sylvestris and P. radiata trees were sprayed with 0, 25 and 50 mM solutions of MJ, and plant growth, external symptoms and histology were assessed 60 days after treatment. Exogenous application of MJ diminished primary or secondary growth in all species (61 and 25%, respectively) and caused needle damage in P. sylvestris. Exogenous MJ did not alter the resin duct structure of Pinus spp. in the cortex. In the secondary xylem, however, the effect of MJ differed considerably between species: ducts, duct density and area covered by ducts increased in P. sylvestris and P. radiata, but not in P. pinaster and P. pinea. In MJ 50 mM-treated trees, resin duct abundance peaked at the first half of the ring in P. sylvestris and at one-third distance from the previous ring in P. radiata. In MJ treated P. radiata trees, large traumatic axial resin ducts, 120–160 μm in diameter, were aligned in the secondary xylem. The study helps to elucidate macroevolutionary aspects of inducibility of resin-based defences in the genus Pinus, where varying responses to MJ could reveal different defence strategies among species.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLópez-Villamor, A., Zas, R., Pérez, A., Cáceres, Y., Silva, M. N. D., Vasconcelos, M., Vázquez-González, C., Sampedro, L., & Solla, A. (2021). Traumatic resin ducts induced by methyl jasmonate in Pinus spp. Trees - Structure and Function, 35(2), 557-567. https://doi.org/10.1007/s00468-020-02057-9pt_PT
dc.identifier.doi10.1007/s00468-020-02057-9pt_PT
dc.identifier.eid85095981678
dc.identifier.eissn1432-2285
dc.identifier.issn0931-1890
dc.identifier.urihttp://hdl.handle.net/10400.14/31831
dc.identifier.wos000589447700001
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationPRI-AIBPT-2011-1152pt_PT
dc.relationRTI2018-094691-B-C33pt_PT
dc.relationCentre for Biotechnology and Fine Chemistry
dc.subjectResistance mechanismspt_PT
dc.subjectInduced defencespt_PT
dc.subjectMaritime pinept_PT
dc.subjectStone pinept_PT
dc.subjectScots pinept_PT
dc.subjectRadiata pinept_PT
dc.titleTraumatic resin ducts induced by methyl jasmonate in Pinus spppt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Biotechnology and Fine Chemistry
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F50016%2F2019/PT
oaire.citation.endPage567
oaire.citation.issue2
oaire.citation.startPage557
oaire.citation.titleTreespt_PT
oaire.citation.volume35
oaire.fundingStream6817 - DCRRNI ID
person.familyNameZas
person.familyNameVasconcelos
person.familyNameSampedro
person.familyNameSolla
person.givenNameRafael
person.givenNameMarta
person.givenNameLuis
person.givenNameAlejandro
person.identifier74696
person.identifier348949
person.identifier.ciencia-idDE1C-ACFF-DFAF
person.identifier.orcid0000-0001-6563-2461
person.identifier.orcid0000-0002-5110-7006
person.identifier.orcid0000-0002-3921-2575
person.identifier.orcid0000-0002-2596-1612
person.identifier.ridI-5729-2014
person.identifier.ridI-8166-2013
person.identifier.ridB-7187-2011
person.identifier.ridL-3096-2014
person.identifier.scopus-author-id6601964499
person.identifier.scopus-author-id14627797100
person.identifier.scopus-author-id6602606802
person.identifier.scopus-author-id6508132226
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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