Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites

In this study, we evaluated the phytoremediation ability of three different genotypes of cowpea grown on mercury-contaminated soils from gold mining areas. In particular we compared a native genotype with two commercial lines L-019 and L-042. The plants were cultivated in soils amended at different...

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Autores: Marrugo-Negrete, José Luis, Durango-Hernández, José David, Díaz-Fernández, L., Urango-Cárdenas, Iván, Araméndiz-Tatis, H., Vergara-Flores, V., Bravo, Andrea G., Díez, Sergi
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/201176
Acceso en línea:http://hdl.handle.net/10261/201176
Access Level:acceso abierto
Palabra clave:Cowpea
Phytoextraction
Mercury
Vigna unguiculata L. Walp
Health risks
Healthy food
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
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spelling Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sitesMarrugo-Negrete, José LuisDurango-Hernández, José DavidDíaz-Fernández, L.Urango-Cárdenas, IvánAraméndiz-Tatis, H.Vergara-Flores, V.Bravo, Andrea G.Díez, SergiCowpeaPhytoextractionMercuryVigna unguiculata L. WalpHealth risksHealthy foodhttp://metadata.un.org/sdg/3Ensure healthy lives and promote well-being for all at all agesIn this study, we evaluated the phytoremediation ability of three different genotypes of cowpea grown on mercury-contaminated soils from gold mining areas. In particular we compared a native genotype with two commercial lines L-019 and L-042. The plants were cultivated in soils amended at different concentrations of Hg (i.e. 0.2, 1, 2, 5 and 8 mg kg−1). After three months exposure, we determined plant growth, seed production, and Hg accumulation in different plant tissues (root, leaf, seed and stem). Indices of soil-plant metal transfer such as translocation, bioconcentration and bioaccumulation factors were calculated. Results showed that the native variety presented the highest seed production (3.8 g), however the highest plant biomass (7.9 g) was observed in line L-019, both on Hg-contaminated soil of 1 mg kg−1. The different plant tissues differed in terms of Hg concentration (root > leaf > stem). In the highest treated soil, the line L-042 accumulates higher Hg in both roots and leaves, while line L-019 accumulates more metal in stems. In line L-019, Hg concentrations in the fruit showed significant differences being higher in the valves than in the seeds. The transfer factors were generally lower than 1 and indicates the low accumulation of Hg by cowpeas. The estimated daily Hg intake through cowpea consumption showed values far below the threshold of 0.57 μg kg−1 dw day−1 recommended by the World Health Organization. Our results show cowpea V. unguiculata as a good protein-rich food substitute of Hg-contaminated fish for populations living near gold mining sites.The authors are grateful to the University of Córdoba, Montería, Colombia for its funding through projects FCB-11-16 and FCB-02-17.Peer reviewedElsevierDíez, Sergi [0000-0002-9870-2179]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/201176reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.chemosphere.2020.126142Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2011762026-05-22T06:33:51Z
dc.title.none.fl_str_mv Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
title Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
spellingShingle Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
Marrugo-Negrete, José Luis
Cowpea
Phytoextraction
Mercury
Vigna unguiculata L. Walp
Health risks
Healthy food
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
title_short Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
title_full Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
title_fullStr Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
title_full_unstemmed Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
title_sort Transfer and bioaccumulation of mercury from soil in cowpea in gold mining sites
dc.creator.none.fl_str_mv Marrugo-Negrete, José Luis
Durango-Hernández, José David
Díaz-Fernández, L.
Urango-Cárdenas, Iván
Araméndiz-Tatis, H.
Vergara-Flores, V.
Bravo, Andrea G.
Díez, Sergi
author Marrugo-Negrete, José Luis
author_facet Marrugo-Negrete, José Luis
Durango-Hernández, José David
Díaz-Fernández, L.
Urango-Cárdenas, Iván
Araméndiz-Tatis, H.
Vergara-Flores, V.
Bravo, Andrea G.
Díez, Sergi
author_role author
author2 Durango-Hernández, José David
Díaz-Fernández, L.
Urango-Cárdenas, Iván
Araméndiz-Tatis, H.
Vergara-Flores, V.
Bravo, Andrea G.
Díez, Sergi
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Díez, Sergi [0000-0002-9870-2179]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Cowpea
Phytoextraction
Mercury
Vigna unguiculata L. Walp
Health risks
Healthy food
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
topic Cowpea
Phytoextraction
Mercury
Vigna unguiculata L. Walp
Health risks
Healthy food
http://metadata.un.org/sdg/3
Ensure healthy lives and promote well-being for all at all ages
description In this study, we evaluated the phytoremediation ability of three different genotypes of cowpea grown on mercury-contaminated soils from gold mining areas. In particular we compared a native genotype with two commercial lines L-019 and L-042. The plants were cultivated in soils amended at different concentrations of Hg (i.e. 0.2, 1, 2, 5 and 8 mg kg−1). After three months exposure, we determined plant growth, seed production, and Hg accumulation in different plant tissues (root, leaf, seed and stem). Indices of soil-plant metal transfer such as translocation, bioconcentration and bioaccumulation factors were calculated. Results showed that the native variety presented the highest seed production (3.8 g), however the highest plant biomass (7.9 g) was observed in line L-019, both on Hg-contaminated soil of 1 mg kg−1. The different plant tissues differed in terms of Hg concentration (root > leaf > stem). In the highest treated soil, the line L-042 accumulates higher Hg in both roots and leaves, while line L-019 accumulates more metal in stems. In line L-019, Hg concentrations in the fruit showed significant differences being higher in the valves than in the seeds. The transfer factors were generally lower than 1 and indicates the low accumulation of Hg by cowpeas. The estimated daily Hg intake through cowpea consumption showed values far below the threshold of 0.57 μg kg−1 dw day−1 recommended by the World Health Organization. Our results show cowpea V. unguiculata as a good protein-rich food substitute of Hg-contaminated fish for populations living near gold mining sites.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/201176
url http://hdl.handle.net/10261/201176
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.chemosphere.2020.126142
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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score 15.812429

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