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dc.contributor.author
Gortari, Fermin
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dc.contributor.author
Guiamet, Juan José
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dc.contributor.author
Cortizo, Silvia Cora
dc.contributor.author
Graciano, Corina
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dc.date.available
2019-08-21T13:40:51Z
dc.date.issued
2018-06
dc.identifier.citation
Gortari, Fermin; Guiamet, Juan José; Cortizo, Silvia Cora; Graciano, Corina; Poplar leaf rust reduces dry mass accumulation and internal nitrogen recycling more markedly under low soil nitrogen availability, and decreases growth in the following spring; Oxford University Press; Tree Physiology; 39; 1; 6-2018; 19-30
dc.identifier.issn
1758-4469
dc.identifier.uri
http://hdl.handle.net/11336/81908
dc.description.abstract
Rust is one of the most important biotic stress factors that affect poplars. The aims of this work were: (i) to analyze the changes in growth and nitrogen (N) accumulation in Populus deltoides W. Bartram ex Marshall plants infected with rust (Melampsora medusae Thümen.) and to determine how internal N stores are affected by the disease, in plants growing under two N availabilities in the soil; and (ii) to evaluate the impact of rust in the early sprout in the following growing season and the cumulative effect of the disease after repeated infections. Two clones with different susceptibility to rust were analyzed. At leaf level, rust reduced gas exchange capacity, water conductance in liquid phase and photosynthetic rate in both clones. At plant level, rust reduced plant growth, accelerated leaf senescence and abscission occurred with a higher concentration of leaf N. Even though N concentration in stems and roots were not significantly reduced by rust, total N accumulation in perennial tissues was reduced in infected plants. The vigor of the early sprout of plants infected by rust in the previous season was lower than that of non-infected plants. Therefore, rust affects plant growth by reducing the photosynthetic capacity and leaf area duration, and by decreasing internal nutrient recycling. As nutrient reserves in perennial tissues are lower, rust infection reduces not only the growth of the current season, but also has a cumulative effect on the following years. The reduction of growth was similar in both clones. High availability of N in the soil had no effect on leaf physiology but increased plant growth, delayed leaf senescence and abscission, and increased total N accumulation. If fertilization increases plant growth (stem and root dry mass) it can mitigate the negative effect of the pathogen in the reduction of nutrient storages and future growth.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Fertilization
dc.subject
Leaf Fungus Disease
dc.subject
Melampsora Medusae (Rust)
dc.subject
Plant-Fungi Interaction
dc.subject
Poplar Clones
dc.subject
Populus Deltoides (Poplar)
dc.subject.classification
Agricultura
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Poplar leaf rust reduces dry mass accumulation and internal nitrogen recycling more markedly under low soil nitrogen availability, and decreases growth in the following spring
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-08-20T14:14:36Z
dc.identifier.eissn
0829-318X
dc.journal.volume
39
dc.journal.number
1
dc.journal.pagination
19-30
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Oxford
dc.description.fil
Fil: Gortari, Fermin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina. Universidad Nacional de Misiones. Facultad de Ciencias Forestales; Argentina
dc.description.fil
Fil: Guiamet, Juan José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina
dc.description.fil
Fil: Cortizo, Silvia Cora. Instituto Nacional de Tecnología Agropecuaria; Argentina
dc.description.fil
Fil: Graciano, Corina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina
dc.journal.title
Tree Physiology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/treephys/advance-article/doi/10.1093/treephys/tpy081/5059389
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/treephys/tpy081
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