Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 305, Issue -, Pages 149-155Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2015.11.027
Keywords
Phytoremediation; Phytometabolization; Endosulfan; Tessaria absinthioides; Grindelia pulchella
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Funding
- Universidad Nacional de San Luis [PROICO 2-1412]
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) [PIP 00360]
- Agencia Nacional de Promotion Cientifica y Tecnologica (ANPCyT) [PICT 2011-1416, PICT 2014-0654]
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Endosulfan is a Persistent Organic Pollutant insecticide still used in many countries. It is commercially available as mixtures of two diastereomers, alpha- and beta-endosulfan, known as technical grade endosulfan (TGE). A laboratory model based on the use of axenic plant cell cultures to study the removal and metabolization of both isomers from contaminated water matrixes was established. No differences were recorded in the removal of the two individual isomers with the two tested endemic plants, Grindelia pulchella and Tessaria absinthioides. Undifferentiated cultures of both plant species were very efficient to lower endosulfan concentration in spiked solutions. Metabolic fate of TGE was evaluated by analyzing the time course of endosulfan metabolites accumulation in both plant biomass and bioremediation media. While in G. pulchella we only detected endosulfan sulfate, in T. absinthioides the non-toxic endosulfan alcohol was the main metabolite at 48 h, giving the possibility of designing phytoremediation approaches. (C) 2015 Elsevier B.V. All rights reserved.
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