dc.creatorPeschiutta, María Laura
dc.creatorBucci, Sandra Janet
dc.creatorScholz, Fabian Gustavo
dc.creatorGoldstein, Guillermo Hernan
dc.date.accessioned2017-12-11T16:43:24Z
dc.date.accessioned2018-11-06T16:05:17Z
dc.date.available2017-12-11T16:43:24Z
dc.date.available2018-11-06T16:05:17Z
dc.date.created2017-12-11T16:43:24Z
dc.date.issued2016-05
dc.identifierPeschiutta, María Laura; Bucci, Sandra Janet; Scholz, Fabian Gustavo; Goldstein, Guillermo Hernan; Compensatory responses in plant-herbivore interactions: Impacts of insects on leaf water relations; Gauthier-villars/editions Elsevier; Acta Oecologica; 73; 5-2016; 71-79
dc.identifier1146-609X
dc.identifierhttp://hdl.handle.net/11336/30140
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1904428
dc.description.abstractHerbivore damage to leaves has been typically evaluated in terms of fractions of area removed; however morpho-physiological changes in the remaining tissues can occur in response to removal. We assessed the effects of partial removal of the leaf mesophyll by Caliroa cerasi (Hymenoptera) on leaf hydraulic conductance (Kleaf), vascular architecture, water relations and leaf size of three Prunus avium cultivars. The insect feeds on the leaf mesophyll leaving the vein network intact (skeletonization). Within each cultivar there were trees without infestations and trees chronically infested, at least over the last three years. Leaf size of intact leaves tended to be similar during leaf expansion before herbivore attack occurs across infested and non-infested trees. However, after herbivore attack and when the leaves were fully expanded, damaged leaves were smaller than leaves from non-infested trees. Damaged area varied between 21 and 31% depending on cultivar. The non-disruption of the vascular system together with either vein density or capacitance increased in damaged leaves resulted in similar Kleaf and stomatal conductance in infested and non-infested trees. Non-stomatal water loss from repeated leaf damage led to lower leaf water potentials in two of the infested cultivars. Lower leaf osmotic potentials and vulnerability to loss of Kleaf were observed in infested plants. Our results show that skeletonization resulted in compensatory changes in terms of water relations and hydraulics traits and in cultivar-specific physiological changes in phylogenetic related P. avium. Our findings indicate that detrimental effects of herbivory on the photosynthetic surface are counterbalanced by changes providing higher drought resistance, which has adaptive significance in ecosystems where water availability is low and furthermore where global climate changes would decrease soil water availability in the future even further.
dc.languageeng
dc.publisherGauthier-villars/editions Elsevier
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1146609X16300492
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.actao.2016.03.005
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectCALIROA CERASI
dc.subjectLEAF HYDRAULIC CONDUCTANCE
dc.subjectLEAF SIZE
dc.subjectOSMOTIC ADJUSTMENT
dc.subjectPRUNUS AVIUM
dc.subjectVASCULAR ARCHITECTURE
dc.titleCompensatory responses in plant-herbivore interactions: Impacts of insects on leaf water relations
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


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