Solanum nigrum L. weed plants as a remediation tool for metalaxyl-polluted effluents and soils |
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Authors: | Teixeira Jorge Sousa Alexandra de Azenha Manuel Moreira José Tiago Fidalgo Fernanda Fernando Silva A Faria Joaquim L Silva Adrián M T |
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Affiliation: | a Center for Biodiversity, Functional & Integrative Genomics (BioFIG), Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, rua do Campo Alegre s/n, 4169-007 Porto, Portugal b CIQUP, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, rua do Campo Alegre 687, 4169-007 Porto, Portugal c Laboratório de Catálise e Materiais, Laboratório Associado LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal |
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Abstract: | In this work, the phytoremediation potential of metalaxyl, a commonly used persistent, mobile and leachy fungicide, by Solanum nigrum L. plants was studied. The study revealed that this plant species can be used as an excellent metalaxyl phytoremediation tool, thus providing a cost effective and environmentally friendly clean technology for the decontamination of sites and effluents. As it can be sowed directly in the remediation site, is able to complete its life cycle without suffering major stress. Because it accumulates high amounts of the fungicide in the aboveground tissues, enables its concentration and proper disposal by cutting off the corresponding plant part. The study also suggests that the tolerance to metalaxyl is due to a suitable antioxidant response comprising proline accumulation and guaiacol peroxidase and glutathione-S-transferase enhanced activities, that reduce oxidative damage to the plant organs. |
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Keywords: | Black nightshade Xenobiotic Phytoremediation Glutathione-S-transferase Peroxidase Metalaxyl |
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