Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil
Lead is known to be a highly toxic metal; it is often found in soils with the potential to be incorporated by plants. Here, the bioaccumulation of lead by rapeseed (Brassica napus) from a soil with Pb(II) added just before sowing is studied. The effect on plant organs is also studied at the ontogene...
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2018
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00496979_v229_n7_p_Ferreyroa http://hdl.handle.net/20.500.12110/paper_00496979_v229_n7_p_Ferreyroa |
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paper:paper_00496979_v229_n7_p_Ferreyroa2023-06-08T15:05:52Z Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Bioaccumulation Biochemistry Lead compounds Plants (botany) Soils Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Soil pollution lead bioaccumulation flowering fractionation growth response lead ontogeny physiological response rhizosphere soil pollution translocation Article bioaccumulation biomass concentration (parameters) controlled study flowering fractionation nonhuman plant growth rapeseed rhizosphere soil analysis soil pollution Brassica napus Lead is known to be a highly toxic metal; it is often found in soils with the potential to be incorporated by plants. Here, the bioaccumulation of lead by rapeseed (Brassica napus) from a soil with Pb(II) added just before sowing is studied. The effect on plant organs is also studied at the ontogenetic stages of flowering and physiological maturity. Moreover, the chemical fractionation of Pb in the rhizosphere and bulk soil portions is investigated and related to Pb accumulation in plant organs. B. napus are found to accumulate Pb in its organs: 1.5–19.6 mg kg−1 in roots, 3.3–15.6 mg kg−1 in stems, 0.5–8.6 mg kg−1 in leaves in all treatments, and in grains 1.45 mg kg−1 at physiological maturity and only for the highest Pb dose (200 mg kg−1). Plant biomass reduction was observed to be about 20% at the flowering stage and only for the highest Pb dose. The analysis of metal fractionation in soil shows Pb migration from the bulk soil to the rhizosphere, attributed to concentration gradients created by root intake. Along the time period studied, lead chemical fractionation in soil evolved toward the most stable fractions, which coupled to plant uptake depleted the soluble/exchangeable one (assumed bioavailable). © 2018, Springer International Publishing AG, part of Springer Nature. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00496979_v229_n7_p_Ferreyroa http://hdl.handle.net/20.500.12110/paper_00496979_v229_n7_p_Ferreyroa |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Bioaccumulation Biochemistry Lead compounds Plants (botany) Soils Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Soil pollution lead bioaccumulation flowering fractionation growth response lead ontogeny physiological response rhizosphere soil pollution translocation Article bioaccumulation biomass concentration (parameters) controlled study flowering fractionation nonhuman plant growth rapeseed rhizosphere soil analysis soil pollution Brassica napus |
| spellingShingle |
Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Bioaccumulation Biochemistry Lead compounds Plants (botany) Soils Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Soil pollution lead bioaccumulation flowering fractionation growth response lead ontogeny physiological response rhizosphere soil pollution translocation Article bioaccumulation biomass concentration (parameters) controlled study flowering fractionation nonhuman plant growth rapeseed rhizosphere soil analysis soil pollution Brassica napus Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil |
| topic_facet |
Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Bioaccumulation Biochemistry Lead compounds Plants (botany) Soils Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Soil pollution lead bioaccumulation flowering fractionation growth response lead ontogeny physiological response rhizosphere soil pollution translocation Article bioaccumulation biomass concentration (parameters) controlled study flowering fractionation nonhuman plant growth rapeseed rhizosphere soil analysis soil pollution Brassica napus |
| description |
Lead is known to be a highly toxic metal; it is often found in soils with the potential to be incorporated by plants. Here, the bioaccumulation of lead by rapeseed (Brassica napus) from a soil with Pb(II) added just before sowing is studied. The effect on plant organs is also studied at the ontogenetic stages of flowering and physiological maturity. Moreover, the chemical fractionation of Pb in the rhizosphere and bulk soil portions is investigated and related to Pb accumulation in plant organs. B. napus are found to accumulate Pb in its organs: 1.5–19.6 mg kg−1 in roots, 3.3–15.6 mg kg−1 in stems, 0.5–8.6 mg kg−1 in leaves in all treatments, and in grains 1.45 mg kg−1 at physiological maturity and only for the highest Pb dose (200 mg kg−1). Plant biomass reduction was observed to be about 20% at the flowering stage and only for the highest Pb dose. The analysis of metal fractionation in soil shows Pb migration from the bulk soil to the rhizosphere, attributed to concentration gradients created by root intake. Along the time period studied, lead chemical fractionation in soil evolved toward the most stable fractions, which coupled to plant uptake depleted the soluble/exchangeable one (assumed bioavailable). © 2018, Springer International Publishing AG, part of Springer Nature. |
| title |
Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil |
| title_short |
Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil |
| title_full |
Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil |
| title_fullStr |
Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil |
| title_full_unstemmed |
Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil |
| title_sort |
brassica napus growth in lead-polluted soil: bioaccumulation in plant organs at different ontogenetic stages and lead fractionation in soil |
| publishDate |
2018 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00496979_v229_n7_p_Ferreyroa http://hdl.handle.net/20.500.12110/paper_00496979_v229_n7_p_Ferreyroa |
| _version_ |
1768545321955098624 |