Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide

Combined microbiological and molecular test (BiologEcoplateTM, denaturing gradient gel electrophoresis (DGGE) and Real Time PCR (qPCR)) were carried out to evaluate the impact of repeated diazinon (DZN) applications at high concentration (40 mg kg-1) on microbial communities in a microcosm simulatin...

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Autores principales: Tortella,G.R, Salgado,E, Cuozzo,S.A, Mella-Herrera,R.A, Parra,L, Diez,M.C, Rubilar,O
Lenguaje:English
Publicado: Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2014
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000400009
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spelling oai:scielo:S0718-951620140004000092015-01-20Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticideTortella,G.RSalgado,ECuozzo,S.AMella-Herrera,R.AParra,LDiez,M.CRubilar,O CLFP biopurification system microbial communities diazinon Combined microbiological and molecular test (BiologEcoplateTM, denaturing gradient gel electrophoresis (DGGE) and Real Time PCR (qPCR)) were carried out to evaluate the impact of repeated diazinon (DZN) applications at high concentration (40 mg kg-1) on microbial communities in a microcosm simulating the organic matrix (straw (50%): peat (25%): soil (25%) vv-1) of a pesticide biopurification system (PBS). Pesticide dissipation was also evaluated. After three successive exposures with DZN the dissipation efficiency was high; DZN dissipation clearly accelerated in the organic matrix, achieving 87%, 93% and 96% respectively after the three applications. The results obtained with BiologEcoplateTM showed that the physiological profiles of the community were not affected by the addition of DZN. On the other hand, molecular assays (DGGE and qPCR) demonstrated that the microbial structure (bacteria and fungi) remained relatively stable over time with high DZN doses compared to control. The results of the present study clearly demonstrate the high dissipation capacity of this biomixture and highlight the microbiological robustness of this biological system.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.14 n.4 20142014-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000400009en10.4067/S0718-95162014005000069
institution Scielo Chile
collection Scielo Chile
language English
topic CLFP
biopurification system
microbial communities
diazinon
spellingShingle CLFP
biopurification system
microbial communities
diazinon
Tortella,G.R
Salgado,E
Cuozzo,S.A
Mella-Herrera,R.A
Parra,L
Diez,M.C
Rubilar,O
Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide
description Combined microbiological and molecular test (BiologEcoplateTM, denaturing gradient gel electrophoresis (DGGE) and Real Time PCR (qPCR)) were carried out to evaluate the impact of repeated diazinon (DZN) applications at high concentration (40 mg kg-1) on microbial communities in a microcosm simulating the organic matrix (straw (50%): peat (25%): soil (25%) vv-1) of a pesticide biopurification system (PBS). Pesticide dissipation was also evaluated. After three successive exposures with DZN the dissipation efficiency was high; DZN dissipation clearly accelerated in the organic matrix, achieving 87%, 93% and 96% respectively after the three applications. The results obtained with BiologEcoplateTM showed that the physiological profiles of the community were not affected by the addition of DZN. On the other hand, molecular assays (DGGE and qPCR) demonstrated that the microbial structure (bacteria and fungi) remained relatively stable over time with high DZN doses compared to control. The results of the present study clearly demonstrate the high dissipation capacity of this biomixture and highlight the microbiological robustness of this biological system.
author Tortella,G.R
Salgado,E
Cuozzo,S.A
Mella-Herrera,R.A
Parra,L
Diez,M.C
Rubilar,O
author_facet Tortella,G.R
Salgado,E
Cuozzo,S.A
Mella-Herrera,R.A
Parra,L
Diez,M.C
Rubilar,O
author_sort Tortella,G.R
title Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide
title_short Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide
title_full Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide
title_fullStr Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide
title_full_unstemmed Combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide
title_sort combined microbiological test to assess changes in an organic matrix used to avoid agricultural soil contamination, exposed to an insecticide
publisher Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate 2014
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000400009
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