Novel insights in biopurification system for dissipation of a pesticide mixture in repeated applications

Primer Autor
Diez, Maria Cristina
Co-autores
Leiva, Barbara#Gallardo, Felipe
Título
Novel insights in biopurification system for dissipation of a pesticide mixture in repeated applications
Editorial
SPRINGER HEIDELBERG
Revista
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Lenguaje
en
Resumen
A biopurification system based on the adsorption and degradation capacity of a biomixture to degrade a mixture of pesticides (atrazine, chlorpyrifos, iprodione, 50 mg kg(-1) each) in repeated applications (0, 30, and 60 days) was evaluated. Tanks of 1 m(3) packed with a biomixture (rho 0.29 g mL(-1)) with and without vegetal cover were used. The biomixture contained soil, peat, and wheat straw in a proportion 1:1:2 by volume, respectively. Pesticide concentrations, biological activities (urease, phenoloxidase, and dehydrogenase), and microbial community changes (DGGE and qPCR) were evaluated periodically. Pesticide dissipation was higher in tanks with vegetal cover (> 95%) and no variation was observed after the three applications, contrarily, pesticide dissipation decreased in the tank without vegetal cover after each application. The presence of vegetal cover decreased the half-life of pesticides by at least twice. Biological activities were in general not affected by the application and reapplication of pesticides in the same treatment, however, they exhibited some differences between tanks containing and lacking the vegetal cover. High similarity between microbial groups (actinobacteria, bacteria, and fungi) was observed, suggesting no influence ascribable to the successive pesticide applications. The number of copies of bacteria and actinobacteria remained almost constant during the assay. However, the number of copies of fungi was significantly higher in the uncontaminated tank without vegetal cover.
Tipo de Recurso
Artículo original
Description
This research was supported by the FONDECYT 1161481 and partially by the CONICYT/FONDAP/15130015 projects.
Esta investigación fue apoyada por el proyecto FONDECYT 1161481 y parcialmente por los proyectos CONICYT/FONDAP/15130015.
doi
10.1007/s11356-017-0130-z
Formato Recurso
pdf
Palabras Claves
Biopurification system# Pesticide dissipation# Vegetal cover# Biological activities# Microbial community
Ubicación del archivo
http://dx.doi.org/10.1007/s11356-017-0130-z
Categoría OCDE
Environmental Sciences
Materias
Sistema de biopurificación# Disipación de pesticidas# Cobertura vegetal# Actividades biológicas# comunidad microbiana
Disciplinas de la OCDE
Biotecnología Ambiental
Biorremediación
Microbiología
Id de Web of Science
WOS:000440115600019
Título de la cita (Recomendado-único)
Novel insights in biopurification system for dissipation of a pesticide mixture in repeated applications
Identificador del recurso (Mandatado-único)
Artículo original
Versión del recurso (Recomendado-único)
version publicada
Editorial
SPRINGER HEIDELBERG
Revista/Libro
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Categoría WOS
Ciencias Ambientales
ISSN
0944-1344
Idioma
en
Referencia del Financiador (Mandatado si es aplicable-repetible)
ANID FONDECYT 1161481#ANID CONICYT FONDAP 15130015
ANID FONDECYT 1161481
ANID CONICYT FONDAP 15130015
Descripción
This research was supported by the FONDECYT 1161481 and partially by the CONICYT/FONDAP/15130015 projects.
Formato
pdf
Tipo de ruta
hibrida
Access Rights
restringido
Derechos de acceso
restringido
Página de inicio (Recomendado-único)
74
Página final (Recomendado-único)
84
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Colección Publicaciones Científicas
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