Variations in the phytoremediation efficiency of metal-polluted water with Salvinia biloba : prospects and toxicological impacts

Abstract: The occurrence of heavy metals in industrial wastewater is unanimously considered a major concern since these pollutants cannot be chemically or biologically degraded and therefore have long residence times. Phytoremediation is one of the most widespread biotechnological applications wo...

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Autores principales: Emiliani, Julia, Llatance Oyarce, Wendi G., Bergara, Claudia Daniela, Salvatierra, Lucas Matías, Novo, Luís A. B., Pérez, Leonardo Martín
Formato: Artículo
Lenguaje:Inglés
Publicado: MDPI 2020
Materias:
FITORREMEDIACION
CONTAMINACION DEL AGUA
METALES PESADOS
SALVINIA BILOBA
Acceso en línea:https://repositorio.uca.edu.ar/handle/123456789/10478
Aporte de:
Repositorio Institucional de la Universidad Católica Argentina (UCA) de Universidad Católica Argentina
id I33-R139123456789-10478
record_format dspace
institution Universidad Católica Argentina
institution_str I-33
repository_str R-139
collection Repositorio Institucional de la Universidad Católica Argentina (UCA)
language Inglés
topic FITORREMEDIACION
CONTAMINACION DEL AGUA
METALES PESADOS
SALVINIA BILOBA
spellingShingle FITORREMEDIACION
CONTAMINACION DEL AGUA
METALES PESADOS
SALVINIA BILOBA
Emiliani, Julia
Llatance Oyarce, Wendi G.
Bergara, Claudia Daniela
Salvatierra, Lucas Matías
Novo, Luís A. B.
Pérez, Leonardo Martín
Variations in the phytoremediation efficiency of metal-polluted water with Salvinia biloba : prospects and toxicological impacts
topic_facet FITORREMEDIACION
CONTAMINACION DEL AGUA
METALES PESADOS
SALVINIA BILOBA
description Abstract: The occurrence of heavy metals in industrial wastewater is unanimously considered a major concern since these pollutants cannot be chemically or biologically degraded and therefore have long residence times. Phytoremediation is one of the most widespread biotechnological applications worldwide, which consists in the use of plants to adsorb or accumulate a broad range of inorganic and organic contaminants from water, air, and soil. To improve the cost-effectiveness and sustainability of phytoremediation-based wastewater treatment systems, it is essential to use plants that are not only efficient in pollutants removal, but also abundant and easily accessible at the target site, requiring no-special culture conditions. In this study, we have evaluated the capacity of naturally-occurring aquatic macrophytes of the genus Salvinia (classified as Salvinia biloba) to phytoremediate water artificially contaminated with cadmium (Cd), copper (Cu), lead (Pb), or zinc (Zn) at equal molar concentrations (50 ± 2 and 100 ± 1 µM), during 48 h. Additionally, photosynthetic and antioxidant pigments (carotenoids, chlorophylls, anthocyanins, and flavonoids), and soluble carbohydrate content was also measured in floating leaves of Salvinia specimens to appraise heavy metals phytotoxicity. Elemental analyses to plant tissue indicate that S. biloba was able to bioconcentrate all four metals analyzed, albeit with different degrees of affinity. In addition, the mechanisms of uptake and detoxification were dissimilar for each ion, resulting in greater removal of Cu and Pb (≥96%, at both concentrations), in comparison to Cd (79 ± 4% and 56 ± 2% for 50 ± 2 and 100 ± 1 µM, respectively) and Zn (77 ± 5% and 70 ± 4% for 50 ± 2 and 100 ± 1 µM, respectively). Accordingly, the assessment of the selected physiological parameters in floating leaves suggests that different response mechanisms are triggered by each metal in S. biloba to counteract the corresponding toxicological stress.
format Artículo
author Emiliani, Julia
Llatance Oyarce, Wendi G.
Bergara, Claudia Daniela
Salvatierra, Lucas Matías
Novo, Luís A. B.
Pérez, Leonardo Martín
author_facet Emiliani, Julia
Llatance Oyarce, Wendi G.
Bergara, Claudia Daniela
Salvatierra, Lucas Matías
Novo, Luís A. B.
Pérez, Leonardo Martín
author_sort Emiliani, Julia
title Variations in the phytoremediation efficiency of metal-polluted water with Salvinia biloba : prospects and toxicological impacts
title_short Variations in the phytoremediation efficiency of metal-polluted water with Salvinia biloba : prospects and toxicological impacts
title_full Variations in the phytoremediation efficiency of metal-polluted water with Salvinia biloba : prospects and toxicological impacts
title_fullStr Variations in the phytoremediation efficiency of metal-polluted water with Salvinia biloba : prospects and toxicological impacts
title_full_unstemmed Variations in the phytoremediation efficiency of metal-polluted water with Salvinia biloba : prospects and toxicological impacts
title_sort variations in the phytoremediation efficiency of metal-polluted water with salvinia biloba : prospects and toxicological impacts
publisher MDPI
publishDate 2020
url https://repositorio.uca.edu.ar/handle/123456789/10478
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