Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils

Plants exposed to trace elements can suffer from oxidative stress, which is characterised by the accumulation of reactive oxygen species, alteration in the cellular antioxidant defence system and ultimately lipid peroxidation. We assessed the most-appropriate stress indexes to describe the response...

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Autores: Martínez Alcalá, Isabel, Hernández, Luis Eduardo, Esteban, Elvira, Walker, David, Bernal, Pilar
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad Católica San Antonio de Murcia (UCAM)
Repositorio:RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
OAI Identifier:oai:repositorio.ucam.edu:10952/7971
Acceso en línea:http://hdl.handle.net/10952/7971
Access Level:acceso abierto
Palabra clave:Chlorophyll
Glutathione
Heavy metals
Malondialdehyde
Phenolics
Phytochelatins
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spelling Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soilsMartínez Alcalá, IsabelHernández, Luis EduardoEsteban, ElviraWalker, DavidBernal, PilarChlorophyllGlutathioneHeavy metalsMalondialdehydePhenolicsPhytochelatinsPlants exposed to trace elements can suffer from oxidative stress, which is characterised by the accumulation of reactive oxygen species, alteration in the cellular antioxidant defence system and ultimately lipid peroxidation. We assessed the most-appropriate stress indexes to describe the response of two plant species, with different strategies for coping with trace elements (TEs), to particular contaminants. Noccaea caerulescens, a hyperaccumulator, and Lupinus albus, an excluder, were grown in three soils of differing pH: an acidic soil, a neutral soil (both contaminated mainly by Cu, Zn and As) and a control soil. Then, plant stress indicators were measured. As expected, N. caerulescens accumulated higher levels of Zn and Cd in shoots than L. albus, this effect being stronger in the acid soil, reflecting greater TE solubility in this soil. However, the shoot concentrations of Mn were higher in L. albus than in N. caerulescens, while the As concentration was similar in the two species. In L. albus, the phenolic content and lipid peroxidation were related with the Cu concentration, whereas the Zn and Cd concentrations in N. caerulescens were more closely related to glutathione content and lipid peroxidation. Interestingly, phytochelatins were only found in L. albus grown in polluted soils. Hence, the two species differed with respect to the TEs which provoked stress and the biochemical indicators of the stress, there being a close relationship between the accumulation of TEs and their associated stress indicators in the different plant organs.Ciencias Ambientales2013info:eu-repo/semantics/articlehttp://hdl.handle.net/10952/7971reponame:RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murciainstname:Universidad Católica San Antonio de Murcia (UCAM)Inglésinfo:eu-repo/semantics/openAccessoai:repositorio.ucam.edu:10952/79712026-06-07T18:35:21Z
dc.title.none.fl_str_mv Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
title Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
spellingShingle Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
Martínez Alcalá, Isabel
Chlorophyll
Glutathione
Heavy metals
Malondialdehyde
Phenolics
Phytochelatins
title_short Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
title_full Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
title_fullStr Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
title_full_unstemmed Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
title_sort Responses of Noccaea caerulescens and Lupinus albus in trace elements-contaminated soils
dc.creator.none.fl_str_mv Martínez Alcalá, Isabel
Hernández, Luis Eduardo
Esteban, Elvira
Walker, David
Bernal, Pilar
author Martínez Alcalá, Isabel
author_facet Martínez Alcalá, Isabel
Hernández, Luis Eduardo
Esteban, Elvira
Walker, David
Bernal, Pilar
author_role author
author2 Hernández, Luis Eduardo
Esteban, Elvira
Walker, David
Bernal, Pilar
author2_role author
author
author
author
dc.subject.none.fl_str_mv Chlorophyll
Glutathione
Heavy metals
Malondialdehyde
Phenolics
Phytochelatins
topic Chlorophyll
Glutathione
Heavy metals
Malondialdehyde
Phenolics
Phytochelatins
description Plants exposed to trace elements can suffer from oxidative stress, which is characterised by the accumulation of reactive oxygen species, alteration in the cellular antioxidant defence system and ultimately lipid peroxidation. We assessed the most-appropriate stress indexes to describe the response of two plant species, with different strategies for coping with trace elements (TEs), to particular contaminants. Noccaea caerulescens, a hyperaccumulator, and Lupinus albus, an excluder, were grown in three soils of differing pH: an acidic soil, a neutral soil (both contaminated mainly by Cu, Zn and As) and a control soil. Then, plant stress indicators were measured. As expected, N. caerulescens accumulated higher levels of Zn and Cd in shoots than L. albus, this effect being stronger in the acid soil, reflecting greater TE solubility in this soil. However, the shoot concentrations of Mn were higher in L. albus than in N. caerulescens, while the As concentration was similar in the two species. In L. albus, the phenolic content and lipid peroxidation were related with the Cu concentration, whereas the Zn and Cd concentrations in N. caerulescens were more closely related to glutathione content and lipid peroxidation. Interestingly, phytochelatins were only found in L. albus grown in polluted soils. Hence, the two species differed with respect to the TEs which provoked stress and the biochemical indicators of the stress, there being a close relationship between the accumulation of TEs and their associated stress indicators in the different plant organs.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10952/7971
url http://hdl.handle.net/10952/7971
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
instname:Universidad Católica San Antonio de Murcia (UCAM)
instname_str Universidad Católica San Antonio de Murcia (UCAM)
reponame_str RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
collection RIUCAM. Repositorio Institucional de la Universidad Católica San Antonio de Murcia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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