Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress

Autores
Bonnin, Sebastían Martín; Alvarez, Javier Alejandro; Faustino, Laura Ines; Graciano, Corina
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Salt stress poses a challenge to tree species in regions where salinity occurs intermittently. Poplars (Populus spp.) are key species for forestry, yet their responses to salt stress remain underexplored, particularly within the intra-specific variability of Populus deltoides W.Bartram ex Marshall. This study investigates the sodium accumulation strategies of two P. deltoides clones, ’Australiano 129/60’ (A129) and ’Hovyú INTA’ (HOV), to understand their contrasting responses to low salinity levels that affect growth and development. A field trial was conducted in monoclonal and mixed clonal plantations established in 2017. Soil and water table salinity were monitored, and sodium concentrations were measured in the roots, branches, and leaves. Growth traits, including height and diameter, were analyzed in relation to sodium distribution in plant tissues. Results revealed that both clones absorbed sodium at similar rates in their roots; however, their sodium transport mechanisms diverged in the aboveground tissues. A129 avoided sodium accumulation in leaves, likely through mechanisms of exclusion at the xylem level, minimizing ion toxicity and preserving leaf functionality. In contrast, HOV accumulated higher sodium levels in leaves, correlating with visible damage, reduced growth, and a negative impact on diameter increment. The findings demonstrate that even under low salinity conditions, the intra-specific variability of P. deltoides plays a crucial role in determining growth outcomes. A129’s ability to limit sodium accumulation in leaves offers an adaptive advantage, although it does not classify this clone as highly salt-tolerant. This study provides valuable insights into the sodium dynamics of poplar clones, contributing to the selection of suitable genotypes for forestry practices in regions with moderate salinity challenges. Future research should address the role of other ions, such as chloride, and further characterize the exclusion mechanisms employed by A129 to enhance understanding of salinity responses in P. deltoides.
EEA Delta del Paraná
Fil: Bonnin, Sebastían Martín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina.
Fil: Alvarez, Javier Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina
Fil: Faustino, Laura Inés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina
Fil: Graciano, Corina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal; Argentina
Fil: Graciano, Corina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina
Fil: Graciano, Corina. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina
Fuente
iForest - Biogeosciences and Forestry 18 (5) : 259-266. (October 2025)
Materia
Populus deltoides
Osmotic Stress
Clones
Intraspecific Variation
Estrés Osmótico
Variación Intraespecífica
Alamo
Estrés Salino
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
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spelling Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stressBonnin, Sebastían MartínAlvarez, Javier AlejandroFaustino, Laura InesGraciano, CorinaPopulus deltoidesOsmotic StressClonesIntraspecific VariationEstrés OsmóticoVariación IntraespecíficaAlamoEstrés SalinoSalt stress poses a challenge to tree species in regions where salinity occurs intermittently. Poplars (Populus spp.) are key species for forestry, yet their responses to salt stress remain underexplored, particularly within the intra-specific variability of Populus deltoides W.Bartram ex Marshall. This study investigates the sodium accumulation strategies of two P. deltoides clones, ’Australiano 129/60’ (A129) and ’Hovyú INTA’ (HOV), to understand their contrasting responses to low salinity levels that affect growth and development. A field trial was conducted in monoclonal and mixed clonal plantations established in 2017. Soil and water table salinity were monitored, and sodium concentrations were measured in the roots, branches, and leaves. Growth traits, including height and diameter, were analyzed in relation to sodium distribution in plant tissues. Results revealed that both clones absorbed sodium at similar rates in their roots; however, their sodium transport mechanisms diverged in the aboveground tissues. A129 avoided sodium accumulation in leaves, likely through mechanisms of exclusion at the xylem level, minimizing ion toxicity and preserving leaf functionality. In contrast, HOV accumulated higher sodium levels in leaves, correlating with visible damage, reduced growth, and a negative impact on diameter increment. The findings demonstrate that even under low salinity conditions, the intra-specific variability of P. deltoides plays a crucial role in determining growth outcomes. A129’s ability to limit sodium accumulation in leaves offers an adaptive advantage, although it does not classify this clone as highly salt-tolerant. This study provides valuable insights into the sodium dynamics of poplar clones, contributing to the selection of suitable genotypes for forestry practices in regions with moderate salinity challenges. Future research should address the role of other ions, such as chloride, and further characterize the exclusion mechanisms employed by A129 to enhance understanding of salinity responses in P. deltoides.EEA Delta del ParanáFil: Bonnin, Sebastían Martín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina.Fil: Alvarez, Javier Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; ArgentinaFil: Faustino, Laura Inés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; ArgentinaFil: Graciano, Corina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal; ArgentinaFil: Graciano, Corina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; ArgentinaFil: Graciano, Corina. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; ArgentinaItalian Society of Silviculture and Forest Ecology2026-08-25T11:12:52Z2026-08-25T11:12:52Z2025-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/27525https://iforest.sisef.org/contents/?id=ifor4783-0181971-7458https://doi.org/10.3832/ifor4783-018iForest - Biogeosciences and Forestry 18 (5) : 259-266. (October 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/2019-PE-E1-I016-001, Desarrollo de una silvicultura sostenible de bosques implantados de alta productividadinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-09-24T11:43:43Zoai:localhost:20.500.12123/27525instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-09-24 11:43:44.819INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
title Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
spellingShingle Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
Bonnin, Sebastían Martín
Populus deltoides
Osmotic Stress
Clones
Intraspecific Variation
Estrés Osmótico
Variación Intraespecífica
Alamo
Estrés Salino
title_short Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
title_full Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
title_fullStr Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
title_full_unstemmed Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
title_sort Two Populus deltoides W.Bartram ex Marshall clones cope differentially with sodium salinity stress
dc.creator.none.fl_str_mv Bonnin, Sebastían Martín
Alvarez, Javier Alejandro
Faustino, Laura Ines
Graciano, Corina
author Bonnin, Sebastían Martín
author_facet Bonnin, Sebastían Martín
Alvarez, Javier Alejandro
Faustino, Laura Ines
Graciano, Corina
author_role author
author2 Alvarez, Javier Alejandro
Faustino, Laura Ines
Graciano, Corina
author2_role author
author
author
dc.subject.none.fl_str_mv Populus deltoides
Osmotic Stress
Clones
Intraspecific Variation
Estrés Osmótico
Variación Intraespecífica
Alamo
Estrés Salino
topic Populus deltoides
Osmotic Stress
Clones
Intraspecific Variation
Estrés Osmótico
Variación Intraespecífica
Alamo
Estrés Salino
dc.description.none.fl_txt_mv Salt stress poses a challenge to tree species in regions where salinity occurs intermittently. Poplars (Populus spp.) are key species for forestry, yet their responses to salt stress remain underexplored, particularly within the intra-specific variability of Populus deltoides W.Bartram ex Marshall. This study investigates the sodium accumulation strategies of two P. deltoides clones, ’Australiano 129/60’ (A129) and ’Hovyú INTA’ (HOV), to understand their contrasting responses to low salinity levels that affect growth and development. A field trial was conducted in monoclonal and mixed clonal plantations established in 2017. Soil and water table salinity were monitored, and sodium concentrations were measured in the roots, branches, and leaves. Growth traits, including height and diameter, were analyzed in relation to sodium distribution in plant tissues. Results revealed that both clones absorbed sodium at similar rates in their roots; however, their sodium transport mechanisms diverged in the aboveground tissues. A129 avoided sodium accumulation in leaves, likely through mechanisms of exclusion at the xylem level, minimizing ion toxicity and preserving leaf functionality. In contrast, HOV accumulated higher sodium levels in leaves, correlating with visible damage, reduced growth, and a negative impact on diameter increment. The findings demonstrate that even under low salinity conditions, the intra-specific variability of P. deltoides plays a crucial role in determining growth outcomes. A129’s ability to limit sodium accumulation in leaves offers an adaptive advantage, although it does not classify this clone as highly salt-tolerant. This study provides valuable insights into the sodium dynamics of poplar clones, contributing to the selection of suitable genotypes for forestry practices in regions with moderate salinity challenges. Future research should address the role of other ions, such as chloride, and further characterize the exclusion mechanisms employed by A129 to enhance understanding of salinity responses in P. deltoides.
EEA Delta del Paraná
Fil: Bonnin, Sebastían Martín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina.
Fil: Alvarez, Javier Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina
Fil: Faustino, Laura Inés. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina
Fil: Graciano, Corina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal; Argentina
Fil: Graciano, Corina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina
Fil: Graciano, Corina. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina
description Salt stress poses a challenge to tree species in regions where salinity occurs intermittently. Poplars (Populus spp.) are key species for forestry, yet their responses to salt stress remain underexplored, particularly within the intra-specific variability of Populus deltoides W.Bartram ex Marshall. This study investigates the sodium accumulation strategies of two P. deltoides clones, ’Australiano 129/60’ (A129) and ’Hovyú INTA’ (HOV), to understand their contrasting responses to low salinity levels that affect growth and development. A field trial was conducted in monoclonal and mixed clonal plantations established in 2017. Soil and water table salinity were monitored, and sodium concentrations were measured in the roots, branches, and leaves. Growth traits, including height and diameter, were analyzed in relation to sodium distribution in plant tissues. Results revealed that both clones absorbed sodium at similar rates in their roots; however, their sodium transport mechanisms diverged in the aboveground tissues. A129 avoided sodium accumulation in leaves, likely through mechanisms of exclusion at the xylem level, minimizing ion toxicity and preserving leaf functionality. In contrast, HOV accumulated higher sodium levels in leaves, correlating with visible damage, reduced growth, and a negative impact on diameter increment. The findings demonstrate that even under low salinity conditions, the intra-specific variability of P. deltoides plays a crucial role in determining growth outcomes. A129’s ability to limit sodium accumulation in leaves offers an adaptive advantage, although it does not classify this clone as highly salt-tolerant. This study provides valuable insights into the sodium dynamics of poplar clones, contributing to the selection of suitable genotypes for forestry practices in regions with moderate salinity challenges. Future research should address the role of other ions, such as chloride, and further characterize the exclusion mechanisms employed by A129 to enhance understanding of salinity responses in P. deltoides.
publishDate 2025
dc.date.none.fl_str_mv 2025-10
2026-08-25T11:12:52Z
2026-08-25T11:12:52Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/27525
https://iforest.sisef.org/contents/?id=ifor4783-018
1971-7458
https://doi.org/10.3832/ifor4783-018
url http://hdl.handle.net/20.500.12123/27525
https://iforest.sisef.org/contents/?id=ifor4783-018
https://doi.org/10.3832/ifor4783-018
identifier_str_mv 1971-7458
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/2019-PE-E1-I016-001, Desarrollo de una silvicultura sostenible de bosques implantados de alta productividad
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Italian Society of Silviculture and Forest Ecology
publisher.none.fl_str_mv Italian Society of Silviculture and Forest Ecology
dc.source.none.fl_str_mv iForest - Biogeosciences and Forestry 18 (5) : 259-266. (October 2025)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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