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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Autores principales:	Ferreyroa, G.V., Gelma, J., Sosa, M.D., Orellana Benitez, M.A., Tudino, M.B., Lavado, R.S., Molina, F.V.
Formato:	JOUR
Materias:	Flowering Lead bioaccumulation Physiological maturity Plant lead translocation Rhizosphere Bioaccumulation Biochemistry Lead compounds Plants (botany) Soils Soil pollution lead bioaccumulation flowering fractionation growth response ontogeny physiological response rhizosphere soil pollution translocation Article biomass concentration (parameters) controlled study nonhuman plant growth rapeseed soil analysis Brassica napus
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00496979_v229_n7_p_Ferreyroa
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00496979_v229_n7_p_Ferreyroa
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spelling	todo:paper_00496979_v229_n7_p_Ferreyroa2023-10-03T14:52:44Z Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil Ferreyroa, G.V. Gelma, J. Sosa, M.D. Orellana Benitez, M.A. Tudino, M.B. Lavado, R.S. Molina, F.V. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Ferreyroa, G.V. Gelma, J. Sosa, M.D. Orellana Benitez, M.A. Tudino, M.B. Lavado, R.S. Molina, F.V. 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.
format	JOUR
author	Ferreyroa, G.V. Gelma, J. Sosa, M.D. Orellana Benitez, M.A. Tudino, M.B. Lavado, R.S. Molina, F.V.
author_facet	Ferreyroa, G.V. Gelma, J. Sosa, M.D. Orellana Benitez, M.A. Tudino, M.B. Lavado, R.S. Molina, F.V.
author_sort	Ferreyroa, G.V.
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
url	http://hdl.handle.net/20.500.12110/paper_00496979_v229_n7_p_Ferreyroa
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Brassica napus Growth in Lead-Polluted Soil: Bioaccumulation in Plant Organs at Different Ontogenetic Stages and Lead Fractionation in Soil

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