Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants

Environmental risk assessment (ERA) of terrestrial environments polluted by heavy metals in Peru requires standardized biological organisms, the use of which is simple, practical, sensitive and repeatable, such as seeds of higher plants used in eco-toxicological bioassays. The aim of this research w...

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Autores principales:	Iannacone O.,José, Alvariño F.,Lorena
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2005
Materias:	heavy metals Peru seeds vascular plants mining waste chromium mercury lead
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200009
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spelling	oai:scielo:S0365-280720050002000092005-08-26Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular PlantsIannacone O.,JoséAlvariño F.,Lorena heavy metals Peru seeds vascular plants seeds mining waste chromium mercury lead Environmental risk assessment (ERA) of terrestrial environments polluted by heavy metals in Peru requires standardized biological organisms, the use of which is simple, practical, sensitive and repeatable, such as seeds of higher plants used in eco-toxicological bioassays. The aim of this research was to evaluate the phytotoxic effects of Cr6+, Hg2+ and Pb2+ as potassium dichromate (K2Cr(2)0(7)), mercury chloride (Cl2Hg) and lead acetate ((CH3C00)2Pb), respectively, on growing roots of four species of higher terrestrial plants: onions (Allium cepa L., Liliaceae), red beets (Beta vulgaris L., Chenopodiaceae), rice (Oriza sativa L., Poaceae) and radishes (Raphanus sativus L., Brassicaceae) at 192 h (8 days) exposure. Bioassays of static sub-lethal toxicity for each metal and for each species of plant were performed, using a randomized complete block design: six concentrations and eight replicates with 240 seeds for each bioassay. The sequence in ascending order for mean inhibition concentration (IC50 in mg L-1) on root growth at 192 h exposure in the majority of cases was: Hg2+ > Cr6+> Pb2+. The perspectives of use for evaluation of soils contaminated by heavy metals in Peru are analyzed.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAAgricultura Técnica v.65 n.2 20052005-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200009en10.4067/S0365-28072005000200009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	heavy metals Peru seeds vascular plants seeds mining waste chromium mercury lead
spellingShingle	heavy metals Peru seeds vascular plants seeds mining waste chromium mercury lead Iannacone O.,José Alvariño F.,Lorena Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants
description	Environmental risk assessment (ERA) of terrestrial environments polluted by heavy metals in Peru requires standardized biological organisms, the use of which is simple, practical, sensitive and repeatable, such as seeds of higher plants used in eco-toxicological bioassays. The aim of this research was to evaluate the phytotoxic effects of Cr6+, Hg2+ and Pb2+ as potassium dichromate (K2Cr(2)0(7)), mercury chloride (Cl2Hg) and lead acetate ((CH3C00)2Pb), respectively, on growing roots of four species of higher terrestrial plants: onions (Allium cepa L., Liliaceae), red beets (Beta vulgaris L., Chenopodiaceae), rice (Oriza sativa L., Poaceae) and radishes (Raphanus sativus L., Brassicaceae) at 192 h (8 days) exposure. Bioassays of static sub-lethal toxicity for each metal and for each species of plant were performed, using a randomized complete block design: six concentrations and eight replicates with 240 seeds for each bioassay. The sequence in ascending order for mean inhibition concentration (IC50 in mg L-1) on root growth at 192 h exposure in the majority of cases was: Hg2+ > Cr6+> Pb2+. The perspectives of use for evaluation of soils contaminated by heavy metals in Peru are analyzed.
author	Iannacone O.,José Alvariño F.,Lorena
author_facet	Iannacone O.,José Alvariño F.,Lorena
author_sort	Iannacone O.,José
title	Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants
title_short	Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants
title_full	Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants
title_fullStr	Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants
title_full_unstemmed	Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants
title_sort	ecotoxicological effects of three heavy metals on the root growth of four vascular plants
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-28072005000200009
work_keys_str_mv	AT iannaconeojose ecotoxicologicaleffectsofthreeheavymetalsontherootgrowthoffourvascularplants AT alvarinoflorena ecotoxicologicaleffectsofthreeheavymetalsontherootgrowthoffourvascularplants
_version_	1718438042717388800

Ecotoxicological Effects of Three Heavy Metals on the Root Growth of Four Vascular Plants

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