New insight into the environmental impact of two imidazolium ionic liquids. Effects on seed germination and soil microbial activity.

Autor: Salgado J; NaFoMat Group, Applied Physics Department, Faculty of Physics, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain. Electronic address: j.salgado.carballo@usc.es., Parajó JJ; NaFoMat Group, Applied Physics Department, Faculty of Physics, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain., Teijeira T; NaFoMat Group, Applied Physics Department, Faculty of Physics, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain., Cruz O; Functional Biology Department, Faculty of Biology, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain., Proupín J; NaFoMat Group, Applied Physics Department, Faculty of Physics, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain., Villanueva M; NaFoMat Group, Applied Physics Department, Faculty of Physics, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain., Rodríguez-Añón JA; NaFoMat Group, Applied Physics Department, Faculty of Physics, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain., Verdes PV; NaFoMat Group, Applied Physics Department, Faculty of Physics, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain., Reyes O; Functional Biology Department, Faculty of Biology, Campus Vida, University of Santiago de Compostela, 15782, Santiago, Spain.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2017 Oct; Vol. 185, pp. 665-672. Date of Electronic Publication: 2017 Jul 14.
DOI: 10.1016/j.chemosphere.2017.07.065
Abstrakt: The next generation of ionic liquids must be synthetized taking into account structures that guarantee the suitable properties for a defined application as well as ecological data. Thus, searching of the right methodologies to know, quickly and efficiently, the ecological effects of these compounds is a preliminary task. The effects of two imidazolium based ionic liquids with different anions, 1-butyl-3-methylimidazolium tetrafluoroborate, [C 4 C 1 Im][BF 4 ], and 1-propyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [C 3 C 1 Im][NTf 2 ], on seedling emergence of six tree species and on the microbial behaviour of two soils were determined in this work. Results showed that the highest doses of both ionic liquids caused the total inhibition of germination for almost all the species studied and that the seeds are more sensitive to the presence of these compounds than soil microbial activity. Nevertheless, signals of stress and death are observed from the results of heat released by microorganisms after the addition of the highest doses of both ionic liquids. The novelty of this work resides in the enlargement of knowledge of toxicity of ILs on complex organisms such as arboreal species and microbial activity of soils studied for the first time through a microcalorimetric technique.
(Copyright © 2017 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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