Article
Soil phenanthrene phytoremediation capacity in bacteria-assisted Spartina densiflora
Author/s | Mesa Marín, Jennifer
Barcia Piedras, José María Mateos Naranjo, Enrique Cox Meana, Lucía Real Ojeda, Miguel Pérez Romero, Jesús Alberto Navarro de la Torre, Salvadora Rodríguez Llorente, Ignacio David Pajuelo Domínguez, Eloísa Parra Martín, Raquel Redondo Gómez, Susana |
Department | Universidad de Sevilla. Departamento de Biología Vegetal y Ecología Universidad de Sevilla. Departamento de Microbiología y Parasitología |
Publication Date | 2019-10-30 |
Deposit Date | 2020-11-12 |
Published in |
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Awards | Premio Anual Publicación Científica Destacada de la US. Facultad de Biología |
Abstract | Polycyclic aromatic hydrocarbons (PAH) have become a threat for the conservation of wetlands worldwide. The halophyte Spartina densiflora has shown to be potentially useful for soil phenanthrene phytoremediation, but no ... Polycyclic aromatic hydrocarbons (PAH) have become a threat for the conservation of wetlands worldwide. The halophyte Spartina densiflora has shown to be potentially useful for soil phenanthrene phytoremediation, but no studies on bacteria-assisted hydrocarbon phytoremediation have been carried out with this halophyte. In this work, three phenanthrene-degrading endophytic bacteria were isolated from S. densiflora tissues and used for plant inoculation. Bacterial bioaugmentation treatments slightly improved S. densiflora growth, photosynthetic and fluorescence parameters. But endophyte-inoculated S. densiflora showed lower soil phenanthrene dissipation rates than non-inoculated S. densiflora (30% below) or even bulk soil (23% less). Our work demonstrates that endophytic inoculation on S. densiflora under greenhouse conditions with the selected PAH-degrading strains did not significantly increase inherent phenanthrene soil dissipation capacity of the halophyte. It would therefore be advisable to provide effective follow-up of bacterial colonization, survival and metabolic activity during phenanthrene soil phytoremediation. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España Ministerio de Educación, Cultura y Deporte (MECD). España |
Project ID. | CGL2016-75550-R
FPU014/03987 |
Citation | Mesa Marín, J., Barcia Piedras, J.M., Mateos Naranjo, E., Cox Meana, L., Real Ojeda, M., Pérez Romero, J.A.,...,Redondo Gómez, S. (2019). Soil phenanthrene phytoremediation capacity in bacteria-assisted Spartina densiflora. Ecotoxicology and Environmental Safety, 182, 109382. |
Files | Size | Format | View | Description |
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10.1016j.ecoenv.2019.109382Get.pdf | 871.5Kb | [PDF] | View/ | Postprint |