Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots

© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

Detalles Bibliográficos
Autores: Quiñones, Miguel Angel, Fajardo, Susana, Fernández-Pascual, Mercedes, Lucas, M. Mercedes, Pueyo, José Javier
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/350501
Acceso en línea:http://hdl.handle.net/10261/350501
Access Level:acceso abierto
Palabra clave:Lupinus albus
Lupin
Bradyrhizobium canariense
Rhizobia
Mercury
Hg
Cluster roots
Nodule
Phytoremediation
Rhizosequestration
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spelling Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster RootsQuiñones, Miguel AngelFajardo, SusanaFernández-Pascual, MercedesLucas, M. MercedesPueyo, José JavierLupinus albusLupinBradyrhizobium canarienseRhizobiaMercuryHgCluster rootsNodulePhytoremediationRhizosequestration© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).Two white lupin (Lupinus albus L.) cultivars were tested for their capacity to accumulate mercury when grown in Hg-contaminated soils. Plants inoculated with a Bradyrhizobium canariense Hg-tolerant strain or non-inoculated were grown in two highly Hg-contaminated soils. All plants were nodulated and presented a large number of cluster roots. They accumulated up to 600 μg Hg g−1 DW in nodules, 1400 μg Hg g−1 DW in roots and 2550 μg Hg g−1 DW in cluster roots. Soil, and not cultivar or inoculation, was accountable for statistically significant differences. No Hg translocation to leaves or seeds took place. Inoculated L. albus cv. G1 plants were grown hydroponically under cluster root-promoting conditions in the presence of Hg. They accumulated about 500 μg Hg g−1 DW in nodules and roots and up to 1300 μg Hg g−1 DW in cluster roots. No translocation to the aerial parts occurred. Bioaccumulation factors were also extremely high, especially in soils and particularly in cluster roots. To our knowledge, Hg accumulation in cluster roots has not been reported to date. Our results suggest that inoculated white lupin might represent a powerful phytoremediation tool through rhizosequestration of Hg in contaminated soils. Potential uptake and immobilization mechanisms are discussed.This research was funded by Agencia Estatal de Investigación, AEI, Spain, grant number AGL2017-88381-R, and by Agencia Estatal Consejo Superior de Investigaciones Científicas, CSIC, grant number 2016SU0005.Peer reviewedMultidisciplinary Digital Publishing InstituteAgencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/350501reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2017-88381-RThe underlying dataset has been published as supplementary material of the article in the publisher platform at https://www.mdpi.com/article/10.3390/horticulturae7090302/s1https://doi.org/10.3390/horticulturae7090302Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3505012026-05-22T06:33:51Z
dc.title.none.fl_str_mv Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
title Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
spellingShingle Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
Quiñones, Miguel Angel
Lupinus albus
Lupin
Bradyrhizobium canariense
Rhizobia
Mercury
Hg
Cluster roots
Nodule
Phytoremediation
Rhizosequestration
title_short Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
title_full Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
title_fullStr Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
title_full_unstemmed Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
title_sort Nodulated White Lupin Plants Growing in Contaminated Soils Accumulate Unusually High Mercury Concentrations in Their Nodules, Roots and Especially Cluster Roots
dc.creator.none.fl_str_mv Quiñones, Miguel Angel
Fajardo, Susana
Fernández-Pascual, Mercedes
Lucas, M. Mercedes
Pueyo, José Javier
author Quiñones, Miguel Angel
author_facet Quiñones, Miguel Angel
Fajardo, Susana
Fernández-Pascual, Mercedes
Lucas, M. Mercedes
Pueyo, José Javier
author_role author
author2 Fajardo, Susana
Fernández-Pascual, Mercedes
Lucas, M. Mercedes
Pueyo, José Javier
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Lupinus albus
Lupin
Bradyrhizobium canariense
Rhizobia
Mercury
Hg
Cluster roots
Nodule
Phytoremediation
Rhizosequestration
topic Lupinus albus
Lupin
Bradyrhizobium canariense
Rhizobia
Mercury
Hg
Cluster roots
Nodule
Phytoremediation
Rhizosequestration
description © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/350501
url http://hdl.handle.net/10261/350501
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2017-88381-R
The underlying dataset has been published as supplementary material of the article in the publisher platform at https://www.mdpi.com/article/10.3390/horticulturae7090302/s1
https://doi.org/10.3390/horticulturae7090302
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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