Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd

Plant nutrients might affect the activity and bioavailability of heavy metals in the soil -plant environment thus their accumulation in the plant. Little is known about the effect of nitrogen fertilization on cadmium (Cd) uptake by alfalfa "Medicago sativa". This work aims to characterize...

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Autores principales:	Hattab,S, Boussetta,H, Banni,M
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2014
Materias:	Phytoremediation alfalfa cadmium nitrogen fertilization
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000100007
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spelling	oai:scielo:S0718-951620140001000072015-11-12Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of CdHattab,SHattab,SBoussetta,HBanni,M Phytoremediation alfalfa cadmium nitrogen fertilization Plant nutrients might affect the activity and bioavailability of heavy metals in the soil -plant environment thus their accumulation in the plant. Little is known about the effect of nitrogen fertilization on cadmium (Cd) uptake by alfalfa "Medicago sativa". This work aims to characterize the oxidative status, the physiological stress parameters and the Cd uptake in alfalfa + Medicago sativa ; exposed to Cd and supplied with nitrogen fertilizers. The experiment was carried out in a green house with alfalfa grown in Cd-polluted soil (3.6 ppm) and amended with two different fertilizers: without NO3- (PK) or with NO3- (NPK) in a sand:peat (v:v) mixture. The following parameters were monitored: Chlorophyll content, Photosynthesis rate, Catalase (CAT) activity, Thiobarbutiric Acid Reactive Species (TBARS) content and Cd bioaccumulation. It was found that NPK fertilization increased mean Cd uptake as well as plant biomass in Cd-exposed plants. Nitrogen supply was also effective in reduction Cd-induces phytotoxicity (Photosynthetic pigments and rate) and oxidative stress alterations. Our results suggest that nitrogen supply may improve the uptake rate of Cd by alfalfa and provide new insights on the importance of nitrogen fertilization towards future phytoremediation applications using alfalfa.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.14 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000100007en10.4067/S0718-95162014005000007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Phytoremediation alfalfa cadmium nitrogen fertilization
spellingShingle	Phytoremediation alfalfa cadmium nitrogen fertilization Hattab,S Hattab,S Boussetta,H Banni,M Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd
description	Plant nutrients might affect the activity and bioavailability of heavy metals in the soil -plant environment thus their accumulation in the plant. Little is known about the effect of nitrogen fertilization on cadmium (Cd) uptake by alfalfa "Medicago sativa". This work aims to characterize the oxidative status, the physiological stress parameters and the Cd uptake in alfalfa + Medicago sativa ; exposed to Cd and supplied with nitrogen fertilizers. The experiment was carried out in a green house with alfalfa grown in Cd-polluted soil (3.6 ppm) and amended with two different fertilizers: without NO3- (PK) or with NO3- (NPK) in a sand:peat (v:v) mixture. The following parameters were monitored: Chlorophyll content, Photosynthesis rate, Catalase (CAT) activity, Thiobarbutiric Acid Reactive Species (TBARS) content and Cd bioaccumulation. It was found that NPK fertilization increased mean Cd uptake as well as plant biomass in Cd-exposed plants. Nitrogen supply was also effective in reduction Cd-induces phytotoxicity (Photosynthetic pigments and rate) and oxidative stress alterations. Our results suggest that nitrogen supply may improve the uptake rate of Cd by alfalfa and provide new insights on the importance of nitrogen fertilization towards future phytoremediation applications using alfalfa.
author	Hattab,S Hattab,S Boussetta,H Banni,M
author_facet	Hattab,S Hattab,S Boussetta,H Banni,M
author_sort	Hattab,S
title	Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd
title_short	Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd
title_full	Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd
title_fullStr	Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd
title_full_unstemmed	Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd
title_sort	influence of nitrate fertilization on cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of cd
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000100007
work_keys_str_mv	AT hattabs influenceofnitratefertilizationoncduptakeandoxidativestressparametersinalfalfaplantscultivatedinpresenceofcd AT hattabs influenceofnitratefertilizationoncduptakeandoxidativestressparametersinalfalfaplantscultivatedinpresenceofcd AT boussettah influenceofnitratefertilizationoncduptakeandoxidativestressparametersinalfalfaplantscultivatedinpresenceofcd AT bannim influenceofnitratefertilizationoncduptakeandoxidativestressparametersinalfalfaplantscultivatedinpresenceofcd
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Influence of nitrate fertilization on Cd uptake and oxidative stress parameters in alfalfa plants cultivated in presence of Cd

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