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Título: | Soil phenanthrene phytoremediation capacity in bacteria-assisted Spartina densiflora |
Autor: | Mesa-Marín, Jennifer; Barcia Piedras, J.M.; Mateos Naranjo, E.; Cox, Lucía CSIC ORCID ; Real Ojeda, Miguel CSIC ORCID; Pérez-Romero, Jesús Alberto; Navarro-Torre, Salvadora; Rodríguez, Ignacio David; Pajuelo, Eloísa; Parra, Raquel; Redondo Gómez, S. | Palabras clave: | Endophytic bacteria Phenanthrene Photosynthesis Phytoremediation Spartina densiflora |
Fecha de publicación: | oct-2019 | Editor: | Academic Press Elsevier |
Citación: | Ecotoxicology and Environmental Safety (182) 109382 (2019) | Resumen: | 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. © 2019 Elsevier Inc. | Descripción: | 8 páginas.- 4 figuras.- 2 tablas.- 46 referencias.- | Versión del editor: | http://dx.doi.org/10.1016/j.ecoenv.2019.109382 | URI: | http://hdl.handle.net/10261/185494 | DOI: | 10.1016/j.ecoenv.2019.109382 | ISSN: | 0147-6513 |
Aparece en las colecciones: | (IRNAS) Artículos |
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