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dc.contributor.author Roqueiro, Gonzalo
dc.contributor.author Causin, Fabio
dc.contributor.author Ollé Resa, Carolina Patricia
dc.contributor.author Maroder, Horacio
dc.contributor.author Maldonado, Sara Beatriz
dc.date.available 2017-01-18T15:29:19Z
dc.date.issued 2013-04
dc.identifier.citation Roqueiro, Gonzalo; Causin, Fabio; Ollé Resa, Carolina Patricia; Maroder, Horacio; Maldonado, Sara Beatriz; Willow seedlings from photooxidized seeds accelerate cotyledon death and anticipate first leaf emergence: a histological and biochemical study following germination; Wiley; Physiologia Plantarum; 149; 2; 4-2013; 286-295
dc.identifier.issn 0031-9317
dc.identifier.uri http://hdl.handle.net/11336/11550
dc.description.abstract In willow seeds, photooxidative damage is mainly restricted to the outer cotyledonary tissues, significantly reducing normal germination. Here we analyzed the damage generated in cotyledonary tissues and investigated whether the increase in reactive oxygen species (ROS) generation in seedlings from photooxidized seeds can affect the morphogenetic capacity of the shoot apical meristem. Seeds were photooxidized under different light intensities and the evolution of the damage during seedling growth was studied by light and transmission electron microscopies. The level of lipid peroxidation and changes in antioxidant capacity were measured following the time course of superoxide dismutase, catalase, ascorbate peroxidase and guaiacol peroxidase enzyme activities, and the effect of photooxidative stress on the genesis of new leaf primordia and lateral roots was examined. Early and active endocytosis and autophagy, changes in chloroplast morphology, as well as the accumulation and diffusion of ROS all play important roles in the early cell death observed in cotyledonary tissues. Following germination, seedlings from photooxidized seeds anticipated the emergence of first leaves, which complemented the altered functionality of the damaged cotyledons.
dc.format application/pdf
dc.language.iso eng
dc.publisher Wiley
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Willow
dc.subject Seeds
dc.subject Oxidative
dc.subject Stress
dc.subject.classification Ciencias de las Plantas, Botánica
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Willow seedlings from photooxidized seeds accelerate cotyledon death and anticipate first leaf emergence: a histological and biochemical study following germination
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2016-12-12T21:06:48Z
dc.journal.volume 149
dc.journal.number 2
dc.journal.pagination 286-295
dc.journal.pais Reino Unido
dc.journal.ciudad Londres
dc.description.fil Fil: Roqueiro, Gonzalo. Universidad Nacional de Luján. Departamento de Ciencias Básicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina
dc.description.fil Fil: Causin, Fabio. Universidad Nacional de Luján; Argentina
dc.description.fil Fil: Ollé Resa, Carolina Patricia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biologia Experimental y Aplicada; Argentina
dc.description.fil Fil: Maroder, Horacio. Universidad Nacional de Luján; Argentina
dc.description.fil Fil: Maldonado, Sara Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Ciudad Universitaria. Instituto de Biodiversidad y Biologia Experimental y Aplicada; Argentina
dc.journal.title Physiologia Plantarum
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ppl.12048/abstract
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://dx.doi.org/10.1111/ppl.12048


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)