Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh

Cadmium (Cd) is a hazardous heavy metal whose concentrations have been increasing in Brazilian soils, largely due to mining activities. Eucalyptus species are widely planted in Brazil to produce raw materials, and the confirmation of their phytoremediation potential would link their economic and env...

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Autores principales:	Gomes,M.P, Marques,T.C.L.L.S.M, Carneiro,M.M.L.C, Soares,Â.M
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2012
Materias:	heavy metal mineral nutrition phytotoxicity root anatomy Cd-uptake
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300010
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spelling	oai:scielo:S0718-951620120003000102014-03-10Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses DehnhGomes,M.PMarques,T.C.L.L.S.MCarneiro,M.M.L.CSoares,Â.M heavy metal mineral nutrition phytotoxicity root anatomy Cd-uptake Cadmium (Cd) is a hazardous heavy metal whose concentrations have been increasing in Brazilian soils, largely due to mining activities. Eucalyptus species are widely planted in Brazil to produce raw materials, and the confirmation of their phytoremediation potential would link their economic and environmental roles. We examined the Cd-tolerance of Eucaliptus camaldulenses Dehnh and the anatomical and physiological features associated with that capacity. Plants were grown under greenhouse conditions in nutrient solutions with increasing concentrations of Cd (0, 15, 25, 45, 90 µmol m-3). Shoot biomass production was less sensitive to the phytotoxic effects of cadmium than root biomass production due to low Cd transport rates from roots to shoots. Increases in epidermal and endodermal thickness, changes in the vascular conductive elements of the roots, as well as differential nutrient distributions between roots and shoots are features of Cd tolerance in this species. The Cd tolerance of E. camaldulenses and its high biomass production support its potential use in Cd phytoremediation programs.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.12 n.3 20122012-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300010en10.4067/S0718-95162012005000010
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	heavy metal mineral nutrition phytotoxicity root anatomy Cd-uptake
spellingShingle	heavy metal mineral nutrition phytotoxicity root anatomy Cd-uptake Gomes,M.P Marques,T.C.L.L.S.M Carneiro,M.M.L.C Soares,Â.M Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh
description	Cadmium (Cd) is a hazardous heavy metal whose concentrations have been increasing in Brazilian soils, largely due to mining activities. Eucalyptus species are widely planted in Brazil to produce raw materials, and the confirmation of their phytoremediation potential would link their economic and environmental roles. We examined the Cd-tolerance of Eucaliptus camaldulenses Dehnh and the anatomical and physiological features associated with that capacity. Plants were grown under greenhouse conditions in nutrient solutions with increasing concentrations of Cd (0, 15, 25, 45, 90 µmol m-3). Shoot biomass production was less sensitive to the phytotoxic effects of cadmium than root biomass production due to low Cd transport rates from roots to shoots. Increases in epidermal and endodermal thickness, changes in the vascular conductive elements of the roots, as well as differential nutrient distributions between roots and shoots are features of Cd tolerance in this species. The Cd tolerance of E. camaldulenses and its high biomass production support its potential use in Cd phytoremediation programs.
author	Gomes,M.P Marques,T.C.L.L.S.M Carneiro,M.M.L.C Soares,Â.M
author_facet	Gomes,M.P Marques,T.C.L.L.S.M Carneiro,M.M.L.C Soares,Â.M
author_sort	Gomes,M.P
title	Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh
title_short	Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh
title_full	Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh
title_fullStr	Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh
title_full_unstemmed	Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh
title_sort	anatomical characteristics and nutrient uptake and distribution associated with the cd-phytoremediation capacity of eucalyptus camaldulenses dehnh
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000300010
work_keys_str_mv	AT gomesmp anatomicalcharacteristicsandnutrientuptakeanddistributionassociatedwiththecdphytoremediationcapacityofeucalyptuscamaldulensesdehnh AT marquestcllsm anatomicalcharacteristicsandnutrientuptakeanddistributionassociatedwiththecdphytoremediationcapacityofeucalyptuscamaldulensesdehnh AT carneirommlc anatomicalcharacteristicsandnutrientuptakeanddistributionassociatedwiththecdphytoremediationcapacityofeucalyptuscamaldulensesdehnh AT soaresam anatomicalcharacteristicsandnutrientuptakeanddistributionassociatedwiththecdphytoremediationcapacityofeucalyptuscamaldulensesdehnh
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Anatomical characteristics and nutrient uptake and distribution associated with the Cd-phytoremediation capacity of Eucalyptus camaldulenses Dehnh

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