Ecological effects of ionic liquids on microbial activity of a soil and on tree seed germination
Por favor, use este identificador para citas ou ligazóns a este ítem:
http://hdl.handle.net/10347/25853
Ficheiros no ítem
Metadatos do ítem
Título: | Ecological effects of ionic liquids on microbial activity of a soil and on tree seed germination |
Autor/a: | Salgado Carballo, Josefa Teijeira Pernas, Tamara Parajó Vieito, Juan José Villanueva López, María Núñez Fernández, Raquel Reyes Ferreira, Otilia |
Centro/Departamento: | Universidade de Santiago de Compostela. Departamento de Bioloxía Funcional Universidade de Santiago de Compostela. Departamento de Física Aplicada |
Palabras chave: | Ionic liquid | Toxicity | Soil microbial activity | Seed germination | |
Data: | 2015 |
Editor: | MDPI |
Cita bibliográfica: | Salgado, J., Teijeira, T., Parajó, J.J., Villanueva, M., Nuñez, R. & Reyes, O. (2015). Ecological effects of ionic liquids on microbial activity of a soil and on tree seed germination. In J.A. Seijas, M.P. Vázquez Tato & S.K. Lin, Proceedings ECSOC-19: The 19Th International Electronic Conference On Synthetic Organic Chemistry: November 1-30, 2015. MDPI. doi: 10.3390/ecsoc-19-f005 |
Serie: | Electronic Conference on Synthetic Organic Chemistry;19 |
Resumo: | Ionic liquids (ILs) are considered one of the most promising green alternatives to molecular organic solvents. Nevertheless, before a widespread use of these compounds in a determined application, the knowledge of their ecotoxicity and biodegradability must be defined. In this work the effect of addition of different doses of 1-butil-2,3-dimethylimidazolium trifluoromethanesulfonate, [C4C1C1Im][OTf], on microbial activity of a soil under Pinus pinaster Aiton and on the seed germination of species of P. pinaster , Pinus sylvestris L., Pinus radiata D. Don and Eucalyptus globulus Labill were analyzed. Additionally, seed germination test were also applied to this IL after being subjected to heat treatment. A microcalorimeter Thermal Activity Monitor (TAM-III) TA-Instruments was used to determine the influence of the addition of four doses (10 %, 25 %, 50 % and 75 %) on the microbial activity of a Galician soil, under P. pinaster. Methodology was widely exposed in previous works [1]. From the data obtained in these experiments, the calculation of microbial growth was performed [2]. Seed germination test of selected species were carried out for several doses of ILs (10 %, 1 %, 0.1 % and 0.01 %). The degradation treatment of the IL was carried out during 24 h in an oven at the temperature of 200 °C. Five replies with 25 seeds per Petri dish were incubated in a Phytotron (Climas AGP890) for every species and treatments. Seeds were maintained for 16 h under light at 24 °C and in the dark for 8 h at 16 °C during 45 days, when the germination was completed in all the species [3, 4]. Results of soil microbial activity and germination obtained for this IL were compared with the corresponding to other ILs, previously studied in our laboratory. Dose of 10 % inhibited totally the germination of the four species and dose of 1 % provoked an important reduction with regard to the control, both, for degraded and no-degraded IL. Nevertheless, in spite of all the doses showed differences on calorimetric parameters with regard to control; only the dose of 75 % does not show soil microbial response. |
Descrición: | The 19th International Electronic Conference on Synthetic Organic Chemistry session Ionic Liquids |
Versión do editor: | https://doi.org/10.3390/ecsoc-19-f005 |
URI: | http://hdl.handle.net/10347/25853 |
DOI: | 10.3390/ecsoc-19-f005 |
ISBN: | 978-3-03842-145-0 |
Dereitos: | © 2016 by MDPI, Basel, Switzerland. Open Access |