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Título : Effect of daily exposure to PB-contaminated water of Salvinia biloba physiology and phytoremediation performance
Autor : Castillo Loria, Kristel 
Emiliani, Julia 
Bergara, Claudia Daniela 
Herrero, María Sol 
Salvatierra, Lucas Matías 
Pérez, Leonardo Martín 
Fecha de publicación : 2019
Editorial : Elsevier
Cita : Castillo Loría K, Emiliani J, Bergara CD, Herrero MS, Salvatierra LM, Pérez LM. Effect of daily exposure to Pb-contaminated water on Salvinia biloba physiology and phytoremediation performance [en línea]. Aquatic Toxicology. 2019;210:158–166. doi:10.1016/j.aquatox.2019.02.019 Disponible en:
Resumen : Abstract: Lead (Pb) removal from water column was evaluated in batch experiments using naturally occurring Salvinia biloba Raddi (S. biloba) specimens collected from Middle Paraná River and exposed every 24 h to a fresh discharge of water contaminated with 2.65±0.07, 12.62±0.02 or 30.57±0.01 mg L-1 Pb, during 10 consecutive days. S. biloba demonstrated a great ability for metal concentration-dependent Pb removal under these stressful conditions. Additionally, Pb toxicity in plants was assessed by the quantification of physiological parameters in root-like modified fronds (named “roots”), and its aerial leaf-like fronds (named “leaves”) of submerged S. biloba. Photosynthetic (carotenoids, chlorophyll a, b, and total) and antioxidant pigments (anthocyanins and flavonoids), soluble carbohydrate content, and membrane stability index of both roots and leaves were affected as the metal concentration increased. In general, root deterioration was more pronounced than that in leaves, suggesting a greater implication of the former organs in Pb removal by S. biloba. All of these deleterious effects were well correlated with qualitative changes observed at plant phenotype during the assay. In conclusion, S. biloba may be considered as a water fern useful in phytoremediation strategies towards management of residual water bodies contaminated with Pb. In addition, these macrophytes could also be valuable for water biomonitoring contributing to improve risk assessments related to metal presence in wastewaters.
ISSN : 0166-445X (impreso)
1879-1514 (online)
DOI: 10.1016/j.aquatox.2019.02.019
Derechos: Acceso abierto. 2 años de embargo
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