dc.creatorBlanco, Andrés
dc.creatorPignata, María L.
dc.creatorLascano, Hernan Ramiro
dc.creatorRodriguez, Judith H.
dc.date.accessioned2021-09-22T18:56:21Z
dc.date.accessioned2023-03-15T14:11:16Z
dc.date.available2021-09-22T18:56:21Z
dc.date.available2023-03-15T14:11:16Z
dc.date.created2021-09-22T18:56:21Z
dc.date.issued2021-01-11
dc.identifier0944-1344
dc.identifier1614-7499 (online)
dc.identifierhttps://doi.org/10.1007/s11356-021-12389-9
dc.identifierhttp://hdl.handle.net/20.500.12123/10333
dc.identifierhttps://link.springer.com/article/10.1007/s11356-021-12389-9
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/6213324
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.
dc.languageeng
dc.publisherSpringer
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourceEnvironmental Science and Pollution Research 28: 22843–22852. (2021)
dc.subjectSoybeans
dc.subjectToxicity
dc.subjectAbiotic Stress
dc.subjectBioaccumulation
dc.subjectHydroponics
dc.subjectToxicidad
dc.subjectEstrés Abiótico
dc.subjectGlycine Max
dc.subjectSoja
dc.subjectBioacumulación
dc.subjectCultivo Hidropónico
dc.titleAssessment of lead tolerance on Glycine max (L.) Merr. at early growth stages
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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