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Abstract
Lead (Pb) contamination of agricultural soils, and subsequently of crops, has been widely reported. Soybean (Glycine max (L.) Merr.) has been indicated as a plant that accumulates Pb, even in soils that do not exceed the maximum permissible levels. Considering the toxicity of this heavy metal, the aim of the present study was to assess different concentrations of Pb, from low to extremely high (0.25 mM, 1 mM, and 2.5 mM), in soybean seedlings and their [ver mas...]
dc.contributor.authorBlanco, Andrés
dc.contributor.authorPignata, María L.
dc.contributor.authorLascano, Hernan Ramiro
dc.contributor.authorRodriguez, Judith H.
dc.date.accessioned2021-09-22T18:56:21Z
dc.date.available2021-09-22T18:56:21Z
dc.date.issued2021-01-11
dc.identifier.issn0944-1344
dc.identifier.issn1614-7499 (online)
dc.identifier.otherhttps://doi.org/10.1007/s11356-021-12389-9
dc.identifier.urihttp://hdl.handle.net/20.500.12123/10333
dc.identifier.urihttps://link.springer.com/article/10.1007/s11356-021-12389-9
dc.description.abstractLead (Pb) contamination of agricultural soils, and subsequently of crops, has been widely reported. Soybean (Glycine max (L.) Merr.) has been indicated as a plant that accumulates Pb, even in soils that do not exceed the maximum permissible levels. Considering the toxicity of this heavy metal, the aim of the present study was to assess different concentrations of Pb, from low to extremely high (0.25 mM, 1 mM, and 2.5 mM), in soybean seedlings and their tolerance by analyzing morpho-physiological parameters in hydroponic experiments. Soybean seedlings were exposed to control and Pb treatments during 8 days, coinciding with the early growth stages, and the following variables were analyzed: biomass, Pb content in roots, stems and leaves, photosynthetic efficiency, leaf area, biochemical response (antioxidant power, chlorophylls, malondialdehyde), and relative water content of leaves. Results showed that roots accumulated much more Pb than the other organs, with Pb accumulation in roots being saturated even at the lowest Pb concentration, which was reflected in root biomass. Moreover, absorption of culture solutions was lower in Pb treatments, which was also reflected in the lower leaf relative water content. Lead toxicity symptoms in leaves (chlorosis and dark spots, and a decrease of biomass and leaf area, chlorophyll content, and photosynthetic efficiency), and an increase of the oxidative defense system were associated only with the highest Pb concentration (2.5 mM). Our findings support the evidence of soybean as a species tolerant to Pb, showing the effects of toxicity at very high concentrations.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherSpringeres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceEnvironmental Science and Pollution Research 28: 22843–22852. (2021)es_AR
dc.subjectSoybeanseng
dc.subjectToxicityeng
dc.subjectAbiotic Stresseng
dc.subjectBioaccumulationeng
dc.subjectHydroponicseng
dc.subjectToxicidades_AR
dc.subjectEstrés Abióticoes_AR
dc.subjectGlycine Maxes_AR
dc.subjectSoja
dc.subjectBioacumulación
dc.subjectCultivo Hidropónico
dc.subject.otherPbes_AR
dc.subject.otherMorpho-Physiological Parameterseng
dc.subject.otherHydroponic Systemeng
dc.titleAssessment of lead tolerance on Glycine max (L.) Merr. at early growth stageses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Fisiología y Recursos Genéticos Vegetaleses_AR
dc.description.filFil: Blanco, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Área Contaminación y Bioindicadores; Argentinaes_AR
dc.description.filFil: Blanco, Andrés. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentinaes_AR
dc.description.filFil: Pignata, María L. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Área Contaminación y Bioindicadores; Argentinaes_AR
dc.description.filFil: Pignata, María L. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentinaes_AR
dc.description.filFil: Lascano, Hernán Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentinaes_AR
dc.description.filFil: Lascano, Hernán Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Unidad de Estudios Agropecuarios (UDEA); Argentinaes_AR
dc.description.filFil: Lascano, Hernán Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales. Argentinaes_AR
dc.description.filFil: Rodriguez, Judith H. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Instituto Multidisciplinario de Biología Vegetal (IMBIV). Área Contaminación y Bioindicadores. Argentinaes_AR
dc.description.filFil: Rodriguez, Judith H. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentinaes_AR
dc.subtypecientifico


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