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Anatomical and physiological consequences of beech leaf disease in Fagus grandifolia L.

dc.rights.licenseopenen_US
dc.contributor.authorFLETCHER, Leila R.
dc.contributor.authorBORSUK, Aleca M.
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorFANTON, Ana Clara
dc.contributor.authorJOHNSON, Kate M.
dc.contributor.authorRICHBURG, Jennifer
dc.contributor.authorZAILAA, Joseph
dc.contributor.authorBRODERSEN, Craig R.
dc.date.accessioned2024-07-10T09:41:13Z
dc.date.available2024-07-10T09:41:13Z
dc.date.issued2023-12-17
dc.identifier.issn1437-4781en_US
dc.identifier.urioai:crossref.org:10.1111/efp.12842
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/200806
dc.description.abstractEnAbstractBeech leaf disease (BLD) is a foliar disease of American Beech (Fagus grandifolia L.) causally linked to the nematode Litylenchus crenatae mccannii and has rapidly spread throughout central and northeastern North America. This study aimed to characterize the anatomical and physiological differences between asymptomatic and symptomatic leaves to provide evidence for a mechanistic link between abnormal leaf development associated with BLD and the long‐term decline of affected trees. We found that leaf mass per area (LMA) and leaf thickness were 45% and 249% higher in symptomatic regions, respectively. The difference in leaf thickness was largely attributable to the spongy mesophyll being 410% thicker in symptomatic as compared with asymptomatic regions of the leaves, but palisade mesophyll and abaxial epidermal tissues were also thicker in symptomatic regions. While major vein density was not significantly different, minor vein density was significantly lower in symptomatic regions, suggesting that the effects on leaf development occur after the formation and initial development of first‐ and second‐order veins. Stomatal density was also lower in symptomatic leaves. Maximum photosynthetic rates were approximately 61% lower in symptomatic leaves and respiration rate increased as the percentage of affected leaf tissue increased. Collectively, our data show reduced photosynthetic capacity, increased respiration rates, and higher leaf construction costs, which will likely have a negative, long‐term impact on the carbon balance of trees affected by BLD.
dc.language.isoENen_US
dc.sourcecrossref
dc.subject.enBeech leaf disease
dc.subject.enFagus grandifolia
dc.subject.enLeaf anatomy
dc.subject.enLeaf hydraulics
dc.subject.enNematode
dc.subject.enPhotosynthesis
dc.subject.enPhysiology
dc.title.enAnatomical and physiological consequences of beech leaf disease in Fagus grandifolia L.
dc.typeArticle de revueen_US
dc.identifier.doi10.1111/efp.12842en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalForest Pathologyen_US
bordeaux.volume54en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.issue1en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionINRAEen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04643129
hal.version1
hal.date.transferred2024-07-10T09:41:16Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
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