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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Lead Tolerance and Accumulation in Hirschfeldia incana, a Mediterranean Brassicaceae from Metalliferous Mine Spoils
PLoS ONE, Volume 8, No. 5, Article e61932, Year 2013
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Description
Lead is a heavy metal of particular concern with respect to environmental quality and health. The lack of plant species that accumulate and tolerate Pb is a limiting factor to understand the molecular mechanisms involved in Pb tolerance. In this study we identified Hirschfeldia incana, a Brassicaceae collected from metalliferous mine spoils in Morocco, as a Pb accumulator plant. H. incana exhibited high Pb accumulation in mine soils and in hydroponic cultures. Major Pb accumulation occurred in the roots and a part of Pb translocated from the roots to the shoots, even to the siliques. These findings demonstrated that H. incana is a Pb accumulator species. The expression of several candidate genes after Pb-exposure was measured by quantitative PCR and two of them, HiHMA4 and HiMT2a, coding respectively for a P1B-type ATPase and a metallothionein, were particularly induced by Pb-exposure in both roots and leaves. The functional characterization of HiHMA4 and HiMT2a was achieved using Arabidopsis T-DNA insertional mutants. Pb content and primary root growth analysis confirmed the role of these two genes in Pb tolerance and accumulation. H. incana could be considered as a good experimental model to identify genes involved in lead tolerance and accumulation in plants. © 2013 Auguy et al.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC3646990/bin/pone.0061932.s001.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3646990/bin/pone.0061932.s002.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3646990/bin/pone.0061932.s003.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3646990/bin/pone.0061932.s004.pdf
https://efashare.b-cdn.net/share/pmc/articles/PMC3646990/bin/pone.0061932.s005.doc
https://efashare.b-cdn.net/share/pmc/articles/PMC3646990/bin/pone.0061932.s006.doc
Authors & Co-Authors
Auguy, Florence
France, Montpellier
Diversité, Adaptation et Développement Des Plantes
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Morocco, Rabat
Mohammed V University in Rabat
Fahr, Mouna
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Morocco, Rabat
Mohammed V University in Rabat
Moulin, Patricia
Morocco, Rabat
Mohammed V University in Rabat
Brugel, Anaïs
France, Montpellier
Diversité, Adaptation et Développement Des Plantes
Laplaze, Laurent
France, Montpellier
Diversité, Adaptation et Développement Des Plantes
Senegal, Dakar
Institut de Recherche Pour le Développement Dakar
El-Mzibri, Mohammed E.
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Morocco, Rabat
Mohammed V University in Rabat
Filali-maltouf, Abdelkarim
Morocco, Rabat
Mohammed V University in Rabat
Doumas, Patrick
France, Montpellier
Diversité, Adaptation et Développement Des Plantes
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Morocco, Rabat
Mohammed V University in Rabat
France, Montpellier
Inrae's Occitanie-montpellier Centre
Smouni, Abdelaziz
Morocco, Rabat
National Energy Center of Nuclear Science and Technology
Morocco, Rabat
Mohammed V University in Rabat
Statistics
Citations: 47
Authors: 9
Affiliations: 5
Identifiers
Doi:
10.1371/journal.pone.0061932
e-ISSN:
19326203
Research Areas
Genetics And Genomics
Study Approach
Quantitative
Study Locations
Morocco